97659331 has 32 divisors (see below), whose sum is σ = 126959616. Its totient is φ = 72900000.

The previous prime is 97659319. The next prime is 97659343. The reversal of 97659331 is 13395679.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (97659319) and next prime (97659343).

It is a 6-Lehmer number, since φ(97659331) divides (97659331-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 97659331 - 2⁵ = 97659299 is a prime.

It is a super-2 number, since 2×97659331² = 19074689862735122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97659301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 388956 + ... + 389206.

It is an arithmetic number, because the mean of its divisors is an integer number (3967488).

Almost surely, 2^97659331 is an apocalyptic number.

97659331 is a deficient number, since it is larger than the sum of its proper divisors (29300285).

97659331 is a wasteful number, since it uses less digits than its factorization.

97659331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463.

The product of its digits is 153090, while the sum is 43.

The square root of 97659331 is about 9882.2735744362. The cubic root of 97659331 is about 460.5087801596.

The spelling of 97659331 in words is "ninety-seven million, six hundred fifty-nine thousand, three hundred thirty-one".