64813368 has 64 divisors (see below), whose sum is σ = 165634560. Its totient is φ = 21131136.

The previous prime is 64813339. The next prime is 64813387. The reversal of 64813368 is 86331846.

It is a nude number because it is divisible by every one of its digits.

Its product of digits (82944) is a multiple of the sum of its prime divisors (432).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388021 + ... + 388187.

It is an arithmetic number, because the mean of its divisors is an integer number (2588040).

Almost surely, 2^64813368 is an apocalyptic number.

It is an amenable number.

64813368 is an abundant number, since it is smaller than the sum of its proper divisors (100821192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64813368 is a wasteful number, since it uses less digits than its factorization.

64813368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 432 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 64813368 is about 8050.6750027560. The cubic root of 64813368 is about 401.6873884578.

The spelling of 64813368 in words is "sixty-four million, eight hundred thirteen thousand, three hundred sixty-eight".