97644913 has 8 divisors (see below), whose sum is σ = 102340800. Its totient is φ = 92986608.

The previous prime is 97644907. The next prime is 97644917. The reversal of 97644913 is 31944679.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97644913 - 2¹⁷ = 97513841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97644913.

It is not an unprimeable number, because it can be changed into a prime (97644917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4003 + ... + 14536.

It is an arithmetic number, because the mean of its divisors is an integer number (12792600).

Almost surely, 2^97644913 is an apocalyptic number.

It is an amenable number.

97644913 is a deficient number, since it is larger than the sum of its proper divisors (4695887).

97644913 is a wasteful number, since it uses less digits than its factorization.

97644913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18791.

The product of its digits is 163296, while the sum is 43.

The square root of 97644913 is about 9881.5440595081. The cubic root of 97644913 is about 460.4861165380.

The spelling of 97644913 in words is "ninety-seven million, six hundred forty-four thousand, nine hundred thirteen".