9920700 has 108 divisors (see below), whose sum is σ = 31730608. Its totient is φ = 2592000.

The previous prime is 9920689. The next prime is 9920711. The reversal of 9920700 is 70299.

9920700 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9920689) and next prime (9920711).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 65625 + ... + 65775.

Almost surely, 2^9920700 is an apocalyptic number.

9920700 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9920700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15865304).

9920700 is an abundant number, since it is smaller than the sum of its proper divisors (21809908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9920700 is a wasteful number, since it uses less digits than its factorization.

9920700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 9920700 is about 3149.7142727555. The cubic root of 9920700 is about 214.8724680840.

Adding to 9920700 its reverse (70299), we get a palindrome (9990999).

It can be divided in two parts, 99 and 20700, that multiplied together give a triangular number (2049300 = T₂₀₂₄).

The spelling of 9920700 in words is "nine million, nine hundred twenty thousand, seven hundred".