63688190 has 32 divisors (see below), whose sum is σ = 122497920. Its totient is φ = 23769504.

The previous prime is 63688189. The next prime is 63688213. The reversal of 63688190 is 9188636.

It is a happy number.

It is a super-2 number, since 2×63688190² = 8112371090952200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10229 + ... + 15231.

It is an arithmetic number, because the mean of its divisors is an integer number (3828060).

Almost surely, 2^63688190 is an apocalyptic number.

63688190 is a deficient number, since it is larger than the sum of its proper divisors (58809730).

63688190 is a wasteful number, since it uses less digits than its factorization.

63688190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5096.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 63688190 is about 7980.4880803119. The cubic root of 63688190 is about 399.3493380046.

The spelling of 63688190 in words is "sixty-three million, six hundred eighty-eight thousand, one hundred ninety".