97621288 has 8 divisors (see below), whose sum is σ = 183039930. Its totient is φ = 48810640.

The previous prime is 97621273. The next prime is 97621313. The reversal of 97621288 is 88212679.

It can be written as a sum of positive squares in only one way, i.e., 90212004 + 7409284 = 9498^2 + 2722^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6101323 + ... + 6101338.

Almost surely, 2^97621288 is an apocalyptic number.

It is an amenable number.

97621288 is a deficient number, since it is larger than the sum of its proper divisors (85418642).

97621288 is a wasteful number, since it uses less digits than its factorization.

97621288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12202667 (or 12202663 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 97621288 is about 9880.3485768469. The cubic root of 97621288 is about 460.4489756306.

The spelling of 97621288 in words is "ninety-seven million, six hundred twenty-one thousand, two hundred eighty-eight".