64629636 has 24 divisors (see below), whose sum is σ = 151957344. Its totient is φ = 21378240.

The previous prime is 64629629. The next prime is 64629641. The reversal of 64629636 is 63692646.

64629636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18985 + ... + 22128.

It is an arithmetic number, because the mean of its divisors is an integer number (6331556).

Almost surely, 2^64629636 is an apocalyptic number.

It is an amenable number.

64629636 is an abundant number, since it is smaller than the sum of its proper divisors (87327708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64629636 is a wasteful number, since it uses less digits than its factorization.

64629636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41251 (or 41249 counting only the distinct ones).

The product of its digits is 279936, while the sum is 42.

The square root of 64629636 is about 8039.2559357194. The cubic root of 64629636 is about 401.3074633592.

The spelling of 64629636 in words is "sixty-four million, six hundred twenty-nine thousand, six hundred thirty-six".