63857113 has 4 divisors (see below), whose sum is σ = 63994320. Its totient is φ = 63719908.

The previous prime is 63857099. The next prime is 63857141. The reversal of 63857113 is 31175836.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63857113 - 2²⁵ = 30302681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63857173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67903 + ... + 68836.

It is an arithmetic number, because the mean of its divisors is an integer number (15998580).

Almost surely, 2^63857113 is an apocalyptic number.

It is an amenable number.

63857113 is a deficient number, since it is larger than the sum of its proper divisors (137207).

63857113 is a wasteful number, since it uses less digits than its factorization.

63857113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137206.

The product of its digits is 15120, while the sum is 34.

The square root of 63857113 is about 7991.0645723833. The cubic root of 63857113 is about 399.7020969395.

The spelling of 63857113 in words is "sixty-three million, eight hundred fifty-seven thousand, one hundred thirteen".