97640032 has 24 divisors (see below), whose sum is σ = 219690576. Its totient is φ = 41845632.

The previous prime is 97640017. The next prime is 97640041. The reversal of 97640032 is 23004679.

It is a super-2 number, since 2×97640032² = 19067151697922048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97639976 and 97640003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217723 + ... + 218170.

It is an arithmetic number, because the mean of its divisors is an integer number (9153774).

Almost surely, 2^97640032 is an apocalyptic number.

It is an amenable number.

97640032 is an abundant number, since it is smaller than the sum of its proper divisors (122050544).

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

97640032 is a wasteful number, since it uses less digits than its factorization.

97640032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435910 (or 435902 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 97640032 is about 9881.2970808493. The cubic root of 97640032 is about 460.4784435996.

The spelling of 97640032 in words is "ninety-seven million, six hundred forty thousand, thirty-two".