9970528 has 24 divisors (see below), whose sum is σ = 19965960. Its totient is φ = 4899840.

The previous prime is 9970489. The next prime is 9970529. The reversal of 9970528 is 8250799.

It is a super-2 number, since 2×9970528² = 198822857197568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9970529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753 + ... + 4528.

It is an arithmetic number, because the mean of its divisors is an integer number (831915).

Almost surely, 2^9970528 is an apocalyptic number.

It is an amenable number.

9970528 is an abundant number, since it is smaller than the sum of its proper divisors (9995432).

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

9970528 is a wasteful number, since it uses less digits than its factorization.

9970528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5350 (or 5342 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 9970528 is about 3157.6142893013. The cubic root of 9970528 is about 215.2316090715.

The spelling of 9970528 in words is "nine million, nine hundred seventy thousand, five hundred twenty-eight".