63631072 has 12 divisors (see below), whose sum is σ = 125273736. Its totient is φ = 31815520.

The previous prime is 63631067. The next prime is 63631079. The reversal of 63631072 is 27013636.

It is a self number, because there is not a number n which added to its sum of digits gives 63631072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63631079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 994204 + ... + 994267.

It is an arithmetic number, because the mean of its divisors is an integer number (10439478).

Almost surely, 2^63631072 is an apocalyptic number.

It is an amenable number.

63631072 is a deficient number, since it is larger than the sum of its proper divisors (61642664).

63631072 is a wasteful number, since it uses less digits than its factorization.

63631072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988481 (or 1988473 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 63631072 is about 7976.9086744177. The cubic root of 63631072 is about 399.2299183872.

The spelling of 63631072 in words is "sixty-three million, six hundred thirty-one thousand, seventy-two".