63412736 has 20 divisors (see below), whose sum is σ = 126702642. Its totient is φ = 31706112.

The previous prime is 63412721. The next prime is 63412759. The reversal of 63412736 is 63721436.

It can be written as a sum of positive squares in only one way, i.e., 46240000 + 17172736 = 6800^2 + 4144^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61415 + ... + 62438.

Almost surely, 2^63412736 is an apocalyptic number.

It is an amenable number.

63412736 is a deficient number, since it is larger than the sum of its proper divisors (63289906).

63412736 is an equidigital number, since it uses as much as digits as its factorization.

63412736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123871 (or 123855 counting only the distinct ones).

The product of its digits is 18144, while the sum is 32.

The square root of 63412736 is about 7963.2114124893. The cubic root of 63412736 is about 398.7727719623.

The spelling of 63412736 in words is "sixty-three million, four hundred twelve thousand, seven hundred thirty-six".