64862944 has 24 divisors (see below), whose sum is σ = 133252560. Its totient is φ = 31021056.

The previous prime is 64862893. The next prime is 64862951. The reversal of 64862944 is 44926846.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 64862944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43329 + ... + 44800.

It is an arithmetic number, because the mean of its divisors is an integer number (5552190).

Almost surely, 2^64862944 is an apocalyptic number.

It is an amenable number.

64862944 is an abundant number, since it is smaller than the sum of its proper divisors (68389616).

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

64862944 is a wasteful number, since it uses less digits than its factorization.

64862944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88162 (or 88154 counting only the distinct ones).

The product of its digits is 331776, while the sum is 43.

The square root of 64862944 is about 8053.7534106775. The cubic root of 64862944 is about 401.7897797767.

The spelling of 64862944 in words is "sixty-four million, eight hundred sixty-two thousand, nine hundred forty-four".