63359891 has 12 divisors (see below), whose sum is σ = 74363112. Its totient is φ = 53823168.

The previous prime is 63359887. The next prime is 63359899. The reversal of 63359891 is 19895336.

It is not a de Polignac number, because 63359891 - 2² = 63359887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63359899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185 + ... + 11258.

It is an arithmetic number, because the mean of its divisors is an integer number (6196926).

Almost surely, 2^63359891 is an apocalyptic number.

63359891 is a deficient number, since it is larger than the sum of its proper divisors (11003221).

63359891 is a wasteful number, since it uses less digits than its factorization.

63359891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11570 (or 11563 counting only the distinct ones).

The product of its digits is 174960, while the sum is 44.

The square root of 63359891 is about 7959.8926500299. The cubic root of 63359891 is about 398.6619687550.

The spelling of 63359891 in words is "sixty-three million, three hundred fifty-nine thousand, eight hundred ninety-one".