9700020 has 192 divisors, whose sum is σ = 34836480. Its totient is φ = 2217600.

The previous prime is 9700003. The next prime is 9700027. The reversal of 9700020 is 200079.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9699966 and 9700002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9700027) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 136585 + ... + 136655.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

Almost surely, 2^9700020 is an apocalyptic number.

9700020 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 9700020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17418240).

9700020 is an abundant number, since it is smaller than the sum of its proper divisors (25136460).

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

9700020 is a wasteful number, since it uses less digits than its factorization.

9700020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 9700020 is about 3114.4855112843. The cubic root of 9700020 is about 213.2672701258.

Adding to 9700020 its reverse (200079), we get a palindrome (9900099).

It can be divided in two parts, 97000 and 20, that added together give a triangular number (97020 = T₄₄₀).

The spelling of 9700020 in words is "nine million, seven hundred thousand, twenty".