63937641 has 16 divisors (see below), whose sum is σ = 89951040. Its totient is φ = 40285440.

The previous prime is 63937613. The next prime is 63937681. The reversal of 63937641 is 14673936.

It is not a de Polignac number, because 63937641 - 2¹⁵ = 63904873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63937641.

It is not an unprimeable number, because it can be changed into a prime (63937681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28621 + ... + 30773.

It is an arithmetic number, because the mean of its divisors is an integer number (5621940).

Almost surely, 2^63937641 is an apocalyptic number.

It is an amenable number.

63937641 is a deficient number, since it is larger than the sum of its proper divisors (26013399).

63937641 is a wasteful number, since it uses less digits than its factorization.

63937641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696.

The product of its digits is 81648, while the sum is 39.

The square root of 63937641 is about 7996.1016126610. The cubic root of 63937641 is about 399.8700431993.

The spelling of 63937641 in words is "sixty-three million, nine hundred thirty-seven thousand, six hundred forty-one".