63331172 has 6 divisors (see below), whose sum is σ = 110829558. Its totient is φ = 31665584.

The previous prime is 63331159. The next prime is 63331187. The reversal of 63331172 is 27113336.

It can be written as a sum of positive squares in only one way, i.e., 46158436 + 17172736 = 6794^2 + 4144^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7916393 + ... + 7916400.

It is an arithmetic number, because the mean of its divisors is an integer number (18471593).

Almost surely, 2^63331172 is an apocalyptic number.

It is an amenable number.

63331172 is a deficient number, since it is larger than the sum of its proper divisors (47498386).

63331172 is a wasteful number, since it uses less digits than its factorization.

63331172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15832797 (or 15832795 counting only the distinct ones).

The product of its digits is 2268, while the sum is 26.

The square root of 63331172 is about 7958.0884639466. The cubic root of 63331172 is about 398.6017261042.

The spelling of 63331172 in words is "sixty-three million, three hundred thirty-one thousand, one hundred seventy-two".