97540312 has 32 divisors (see below), whose sum is σ = 188107920. Its totient is φ = 47388160.

The previous prime is 97540241. The next prime is 97540327. The reversal of 97540312 is 21304579.

It is a super-2 number, since 2×97540312² = 19028224930114688, which contains 22 as substring.

It is a congruent number.

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, 113388 + ... + 114244.

Almost surely, 2^97540312 is an apocalyptic number.

It is an amenable number.

97540312 is a deficient number, since it is larger than the sum of its proper divisors (90567608).

97540312 is a wasteful number, since it uses less digits than its factorization.

97540312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251 (or 1247 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 97540312 is about 9876.2498955828. The cubic root of 97540312 is about 460.3216276206.

The spelling of 97540312 in words is "ninety-seven million, five hundred forty thousand, three hundred twelve".