63856412 has 6 divisors (see below), whose sum is σ = 111748728. Its totient is φ = 31928204.

The previous prime is 63856399. The next prime is 63856459. The reversal of 63856412 is 21465836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7982048 + ... + 7982055.

It is an arithmetic number, because the mean of its divisors is an integer number (18624788).

Almost surely, 2^63856412 is an apocalyptic number.

It is an amenable number.

63856412 is a deficient number, since it is larger than the sum of its proper divisors (47892316).

63856412 is a wasteful number, since it uses less digits than its factorization.

63856412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15964107 (or 15964105 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 63856412 is about 7991.0207107728. The cubic root of 63856412 is about 399.7006343397.

The spelling of 63856412 in words is "sixty-three million, eight hundred fifty-six thousand, four hundred twelve".