97631668 has 6 divisors (see below), whose sum is σ = 170855426. Its totient is φ = 48815832.

The previous prime is 97631657. The next prime is 97631669. The reversal of 97631668 is 86613679.

It can be written as a sum of positive squares in only one way, i.e., 59166864 + 38464804 = 7692^2 + 6202^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97631669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12203955 + ... + 12203962.

Almost surely, 2^97631668 is an apocalyptic number.

It is an amenable number.

97631668 is a deficient number, since it is larger than the sum of its proper divisors (73223758).

97631668 is a wasteful number, since it uses less digits than its factorization.

97631668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24407921 (or 24407919 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The square root of 97631668 is about 9880.8738479954. The cubic root of 97631668 is about 460.4652947863.

The spelling of 97631668 in words is "ninety-seven million, six hundred thirty-one thousand, six hundred sixty-eight".