63634934 has 16 divisors (see below), whose sum is σ = 104294736. Its totient is φ = 28879200.

The previous prime is 63634913. The next prime is 63634937. The reversal of 63634934 is 43943636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63634937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14744 + ... + 18564.

It is an arithmetic number, because the mean of its divisors is an integer number (6518421).

Almost surely, 2^63634934 is an apocalyptic number.

63634934 is a deficient number, since it is larger than the sum of its proper divisors (40659802).

63634934 is a wasteful number, since it uses less digits than its factorization.

63634934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4591.

The product of its digits is 139968, while the sum is 38.

The square root of 63634934 is about 7977.1507444701. The cubic root of 63634934 is about 399.2379951266.

The spelling of 63634934 in words is "sixty-three million, six hundred thirty-four thousand, nine hundred thirty-four".