64630850 has 48 divisors (see below), whose sum is σ = 126855720. Its totient is φ = 24489920.

The previous prime is 64630847. The next prime is 64630859. The reversal of 64630850 is 5803646.

It can be written as a sum of positive squares in 12 ways, for example, as 5329 + 64625521 = 73^2 + 8039^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64630859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1219424 + ... + 1219476.

Almost surely, 2^64630850 is an apocalyptic number.

64630850 is a deficient number, since it is larger than the sum of its proper divisors (62224870).

64630850 is an equidigital number, since it uses as much as digits as its factorization.

64630850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 64630850 is about 8039.3314398649. The cubic root of 64630850 is about 401.3099760569.

The spelling of 64630850 in words is "sixty-four million, six hundred thirty thousand, eight hundred fifty".