64969597 has 16 divisors (see below), whose sum is σ = 85767552. Its totient is φ = 47646720.

The previous prime is 64969591. The next prime is 64969601. The reversal of 64969597 is 79596946.

It is not a de Polignac number, because 64969597 - 2³ = 64969589 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 (64969591) 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, 23508 + ... + 26125.

It is an arithmetic number, because the mean of its divisors is an integer number (5360472).

Almost surely, 2^64969597 is an apocalyptic number.

It is an amenable number.

64969597 is a deficient number, since it is larger than the sum of its proper divisors (20797955).

64969597 is a wasteful number, since it uses less digits than its factorization.

64969597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49668.

The product of its digits is 3674160, while the sum is 55.

The square root of 64969597 is about 8060.3720137473. The cubic root of 64969597 is about 402.0098778131.

The spelling of 64969597 in words is "sixty-four million, nine hundred sixty-nine thousand, five hundred ninety-seven".