63318893 has 4 divisors (see below), whose sum is σ = 69075168. Its totient is φ = 57562620.

The previous prime is 63318851. The next prime is 63318901. The reversal of 63318893 is 39881336.

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 63318893 - 2²⁰ = 62270317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63318893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63378893) 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, 2878121 + ... + 2878142.

It is an arithmetic number, because the mean of its divisors is an integer number (17268792).

Almost surely, 2^63318893 is an apocalyptic number.

It is an amenable number.

63318893 is a deficient number, since it is larger than the sum of its proper divisors (5756275).

63318893 is a wasteful number, since it uses less digits than its factorization.

63318893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5756274.

The product of its digits is 93312, while the sum is 41.

The square root of 63318893 is about 7957.3169473133. The cubic root of 63318893 is about 398.5759633989.

The spelling of 63318893 in words is "sixty-three million, three hundred eighteen thousand, eight hundred ninety-three".