63331312 has 20 divisors (see below), whose sum is σ = 133859736. Its totient is φ = 28786880.

The previous prime is 63331291. The next prime is 63331339. The reversal of 63331312 is 21313336.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179743 + ... + 180094.

Almost surely, 2^63331312 is an apocalyptic number.

It is an amenable number.

63331312 is an abundant number, since it is smaller than the sum of its proper divisors (70528424).

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

63331312 is a wasteful number, since it uses less digits than its factorization.

63331312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359856 (or 359850 counting only the distinct ones).

The product of its digits is 972, while the sum is 22.

The square root of 63331312 is about 7958.0972600239. The cubic root of 63331312 is about 398.6020198205.

Adding to 63331312 its reverse (21313336), we get a palindrome (84644648).

The spelling of 63331312 in words is "sixty-three million, three hundred thirty-one thousand, three hundred twelve".