97215432 has 32 divisors (see below), whose sum is σ = 248693280. Its totient is φ = 31651200.

The previous prime is 97215403. The next prime is 97215463. The reversal of 97215432 is 23451279.

It is a junction number, because it is equal to n+sod(n) for n = 97215393 and 97215402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46069 + ... + 48132.

It is an arithmetic number, because the mean of its divisors is an integer number (7771665).

Almost surely, 2^97215432 is an apocalyptic number.

It is an amenable number.

97215432 is an abundant number, since it is smaller than the sum of its proper divisors (151477848).

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

97215432 is a wasteful number, since it uses less digits than its factorization.

97215432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94253 (or 94249 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 97215432 is about 9859.7886387082. The cubic root of 97215432 is about 459.8099908381.

The spelling of 97215432 in words is "ninety-seven million, two hundred fifteen thousand, four hundred thirty-two".