64906504 has 32 divisors (see below), whose sum is σ = 131586840. Its totient is φ = 29836800.

The previous prime is 64906487. The next prime is 64906511. The reversal of 64906504 is 40560946.

64906504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 54730404 + 10176100 = 7398^2 + 3190^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64906504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28114 + ... + 30334.

Almost surely, 2^64906504 is an apocalyptic number.

It is an amenable number.

64906504 is an abundant number, since it is smaller than the sum of its proper divisors (66680336).

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

64906504 is a wasteful number, since it uses less digits than its factorization.

64906504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521 (or 2517 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 64906504 is about 8056.4572859291. The cubic root of 64906504 is about 401.8797029555.

The spelling of 64906504 in words is "sixty-four million, nine hundred six thousand, five hundred four".