64797399 has 12 divisors (see below), whose sum is σ = 95183400. Its totient is φ = 42465744.

The previous prime is 64797389. The next prime is 64797413. The reversal of 64797399 is 99379746.

It is not a de Polignac number, because 64797399 - 2⁵ = 64797367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64797379) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60484 + ... + 61545.

It is an arithmetic number, because the mean of its divisors is an integer number (7931950).

Almost surely, 2^64797399 is an apocalyptic number.

64797399 is a deficient number, since it is larger than the sum of its proper divisors (30386001).

64797399 is a wasteful number, since it uses less digits than its factorization.

64797399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122094 (or 122091 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 54.

The square root of 64797399 is about 8049.6831614667. The cubic root of 64797399 is about 401.6543959184.

The spelling of 64797399 in words is "sixty-four million, seven hundred ninety-seven thousand, three hundred ninety-nine".