97087572 has 30 divisors (see below), whose sum is σ = 253806938. Its totient is φ = 32362416.

The previous prime is 97087559. The next prime is 97087583. The reversal of 97087572 is 27578079.

97087572 is a `hidden beast` number, since 9 + 70 + 8 + 7 + 572 = 666.

It can be written as a sum of positive squares in only one way, i.e., 86936976 + 10150596 = 9324^2 + 3186^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 149503 + ... + 150150.

Almost surely, 2^97087572 is an apocalyptic number.

It is an amenable number.

97087572 is an abundant number, since it is smaller than the sum of its proper divisors (156719366).

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

97087572 is a wasteful number, since it uses less digits than its factorization.

97087572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299669 (or 299658 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 45.

The square root of 97087572 is about 9853.3025935470. The cubic root of 97087572 is about 459.6083181283.

The spelling of 97087572 in words is "ninety-seven million, eighty-seven thousand, five hundred seventy-two".