64651204 has 12 divisors (see below), whose sum is σ = 119795004. Its totient is φ = 30424064.

The previous prime is 64651201. The next prime is 64651207. The reversal of 64651204 is 40215646.

It is an interprime number because it is at equal distance from previous prime (64651201) and next prime (64651207).

It can be written as a sum of positive squares in 2 ways, for example, as 49674304 + 14976900 = 7048^2 + 3870^2 .

It is not an unprimeable number, because it can be changed into a prime (64651201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475309 + ... + 475444.

It is an arithmetic number, because the mean of its divisors is an integer number (9982917).

Almost surely, 2^64651204 is an apocalyptic number.

It is an amenable number.

64651204 is a deficient number, since it is larger than the sum of its proper divisors (55143800).

64651204 is a wasteful number, since it uses less digits than its factorization.

64651204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950774 (or 950772 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 64651204 is about 8040.5972414989. The cubic root of 64651204 is about 401.3520994182.

The spelling of 64651204 in words is "sixty-four million, six hundred fifty-one thousand, two hundred four".