64648365 has 32 divisors (see below), whose sum is σ = 111404160. Its totient is φ = 31893504.

The previous prime is 64648357. The next prime is 64648373. The reversal of 64648365 is 56384646.

It is an interprime number because it is at equal distance from previous prime (64648357) and next prime (64648373).

It is not a de Polignac number, because 64648365 - 2³ = 64648357 is a prime.

It is a super-2 number, since 2×64648365² = 8358822194346450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12897 + ... + 17193.

It is an arithmetic number, because the mean of its divisors is an integer number (3481380).

Almost surely, 2^64648365 is an apocalyptic number.

It is an amenable number.

64648365 is a deficient number, since it is larger than the sum of its proper divisors (46755795).

64648365 is a wasteful number, since it uses less digits than its factorization.

64648365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4381.

The product of its digits is 414720, while the sum is 42.

The square root of 64648365 is about 8040.4206979486. The cubic root of 64648365 is about 401.3462245325.

The spelling of 64648365 in words is "sixty-four million, six hundred forty-eight thousand, three hundred sixty-five".