97644679 has 16 divisors (see below), whose sum is σ = 108397440. Its totient is φ = 87220000.

The previous prime is 97644647. The next prime is 97644691.

97644679 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 97644679 - 2⁵ = 97644647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97644619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198624 + ... + 199114.

It is an arithmetic number, because the mean of its divisors is an integer number (6774840).

Almost surely, 2^97644679 is an apocalyptic number.

97644679 is a deficient number, since it is larger than the sum of its proper divisors (10752761).

97644679 is a wasteful number, since it uses less digits than its factorization.

97644679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782.

The product of its digits is 2286144, while the sum is 52.

The square root of 97644679 is about 9881.5322192462. The cubic root of 97644679 is about 460.4857486955.

The spelling of 97644679 in words is "ninety-seven million, six hundred forty-four thousand, six hundred seventy-nine".