63879085 has 4 divisors (see below), whose sum is σ = 76654908. Its totient is φ = 51103264.

The previous prime is 63879077. The next prime is 63879091. The reversal of 63879085 is 58097836.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31832164 + 32046921 = 5642^2 + 5661^2 .

It is a cyclic number.

It is not a de Polignac number, because 63879085 - 2³ = 63879077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6387904 + ... + 6387913.

It is an arithmetic number, because the mean of its divisors is an integer number (19163727).

Almost surely, 2^63879085 is an apocalyptic number.

It is an amenable number.

63879085 is a deficient number, since it is larger than the sum of its proper divisors (12775823).

63879085 is a wasteful number, since it uses less digits than its factorization.

63879085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12775822.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 63879085 is about 7992.4392396815. The cubic root of 63879085 is about 399.7479349414.

The spelling of 63879085 in words is "sixty-three million, eight hundred seventy-nine thousand, eighty-five".