9920070 has 80 divisors (see below), whose sum is σ = 27477648. Its totient is φ = 2566080.

The previous prime is 9920047. The next prime is 9920089. The reversal of 9920070 is 700299.

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 a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 29805 + ... + 30135.

Almost surely, 2^9920070 is an apocalyptic number.

9920070 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9920070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13738824).

9920070 is an abundant number, since it is smaller than the sum of its proper divisors (17557578).

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

9920070 is a wasteful number, since it uses less digits than its factorization.

9920070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387 (or 378 counting only the distinct ones).

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

The square root of 9920070 is about 3149.6142620962. The cubic root of 9920070 is about 214.8679195971.

The spelling of 9920070 in words is "nine million, nine hundred twenty thousand, seventy".