64538883 has 8 divisors (see below), whose sum is σ = 95613200. Its totient is φ = 43025904.

The previous prime is 64538867. The next prime is 64538917. The reversal of 64538883 is 38883546.

It is not a de Polignac number, because 64538883 - 2⁴ = 64538867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64538983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1195138 + ... + 1195191.

It is an arithmetic number, because the mean of its divisors is an integer number (11951650).

Almost surely, 2^64538883 is an apocalyptic number.

64538883 is a deficient number, since it is larger than the sum of its proper divisors (31074317).

64538883 is a wasteful number, since it uses less digits than its factorization.

64538883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390338 (or 2390332 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 64538883 is about 8033.6095872279. The cubic root of 64538883 is about 401.1195365879.

The spelling of 64538883 in words is "sixty-four million, five hundred thirty-eight thousand, eight hundred eighty-three".