64883904 has 112 divisors (see below), whose sum is σ = 182392320. Its totient is φ = 20321280.

The previous prime is 64883887. The next prime is 64883909. The reversal of 64883904 is 40938846.

It is not an unprimeable number, because it can be changed into a prime (64883909) 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, 239289 + ... + 239559.

Almost surely, 2^64883904 is an apocalyptic number.

64883904 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64883904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91196160).

64883904 is an abundant number, since it is smaller than the sum of its proper divisors (117508416).

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

64883904 is a wasteful number, since it uses less digits than its factorization.

64883904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 64883904 is about 8055.0545621988. The cubic root of 64883904 is about 401.8330536210.

The spelling of 64883904 in words is "sixty-four million, eight hundred eighty-three thousand, nine hundred four".