63876313 has 4 divisors (see below), whose sum is σ = 66653568. Its totient is φ = 61099060.

The previous prime is 63876287. The next prime is 63876341. The reversal of 63876313 is 31367836.

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 a de Polignac number, because none of the positive numbers 2^k-63876313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63876353) 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, 1388593 + ... + 1388638.

It is an arithmetic number, because the mean of its divisors is an integer number (16663392).

Almost surely, 2^63876313 is an apocalyptic number.

It is an amenable number.

63876313 is a deficient number, since it is larger than the sum of its proper divisors (2777255).

63876313 is a wasteful number, since it uses less digits than its factorization.

63876313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777254.

The product of its digits is 54432, while the sum is 37.

The square root of 63876313 is about 7992.2658239075. The cubic root of 63876313 is about 399.7421525725.

The spelling of 63876313 in words is "sixty-three million, eight hundred seventy-six thousand, three hundred thirteen".