63689164 has 24 divisors (see below), whose sum is σ = 138958848. Its totient is φ = 24813840.

The previous prime is 63689161. The next prime is 63689177. The reversal of 63689164 is 46198636.

It is a super-2 number, since 2×63689164² = 8112619222037792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63689164.

It is not an unprimeable number, because it can be changed into a prime (63689161) 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, 103084 + ... + 103699.

It is an arithmetic number, because the mean of its divisors is an integer number (5789952).

Almost surely, 2^63689164 is an apocalyptic number.

It is an amenable number.

63689164 is an abundant number, since it is smaller than the sum of its proper divisors (75269684).

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

63689164 is a wasteful number, since it uses less digits than its factorization.

63689164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206805 (or 206803 counting only the distinct ones).

The product of its digits is 186624, while the sum is 43.

The square root of 63689164 is about 7980.5491039151. The cubic root of 63689164 is about 399.3513737786.

The spelling of 63689164 in words is "sixty-three million, six hundred eighty-nine thousand, one hundred sixty-four".