63312368 has 20 divisors (see below), whose sum is σ = 140191920. Its totient is φ = 27133824.

The previous prime is 63312367. The next prime is 63312371. The reversal of 63312368 is 86321336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63312367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282533 + ... + 282756.

It is an arithmetic number, because the mean of its divisors is an integer number (7009596).

Almost surely, 2^63312368 is an apocalyptic number.

It is an amenable number.

63312368 is an abundant number, since it is smaller than the sum of its proper divisors (76879552).

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

63312368 is a wasteful number, since it uses less digits than its factorization.

63312368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565304 (or 565298 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 63312368 is about 7956.9069367437. The cubic root of 63312368 is about 398.5622718693.

The spelling of 63312368 in words is "sixty-three million, three hundred twelve thousand, three hundred sixty-eight".