639211414 has 16 divisors (see below), whose sum is σ = 1010880000. Its totient is φ = 302304744.

The previous prime is 639211399. The next prime is 639211427. The reversal of 639211414 is 414112936.

639211414 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11587 + ... + 37585.

It is an arithmetic number, because the mean of its divisors is an integer number (63180000).

Almost surely, 2^639211414 is an apocalyptic number.

639211414 is a deficient number, since it is larger than the sum of its proper divisors (371668586).

639211414 is a wasteful number, since it uses less digits than its factorization.

639211414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26667.

The product of its digits is 5184, while the sum is 31.

The square root of 639211414 is about 25282.6306779971. The cubic root of 639211414 is about 861.4197811562.

The spelling of 639211414 in words is "six hundred thirty-nine million, two hundred eleven thousand, four hundred fourteen".