63213408 has 36 divisors (see below), whose sum is σ = 179763948. Its totient is φ = 21071040.

The previous prime is 63213391. The next prime is 63213419. The reversal of 63213408 is 80431236.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109458 + ... + 110033.

It is an arithmetic number, because the mean of its divisors is an integer number (4993443).

Almost surely, 2^63213408 is an apocalyptic number.

It is an amenable number.

63213408 is an abundant number, since it is smaller than the sum of its proper divisors (116550540).

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

63213408 is a wasteful number, since it uses less digits than its factorization.

63213408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219507 (or 219496 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 63213408 is about 7950.6860081379. The cubic root of 63213408 is about 398.3545068293.

The spelling of 63213408 in words is "sixty-three million, two hundred thirteen thousand, four hundred eight".