63772144 has 40 divisors (see below), whose sum is σ = 126956160. Its totient is φ = 31020288.

The previous prime is 63772133. The next prime is 63772147. The reversal of 63772144 is 44127736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63772147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132897 + ... + 133375.

It is an arithmetic number, because the mean of its divisors is an integer number (3173904).

Almost surely, 2^63772144 is an apocalyptic number.

It is an amenable number.

63772144 is a deficient number, since it is larger than the sum of its proper divisors (63184016).

63772144 is a wasteful number, since it uses less digits than its factorization.

63772144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697 (or 691 counting only the distinct ones).

The product of its digits is 28224, while the sum is 34.

The square root of 63772144 is about 7985.7463020058. The cubic root of 63772144 is about 399.5247355329.

The spelling of 63772144 in words is "sixty-three million, seven hundred seventy-two thousand, one hundred forty-four".