79077863 has 4 divisors (see below), whose sum is σ = 83729520. Its totient is φ = 74426208.

The previous prime is 79077853. The next prime is 79077871. The reversal of 79077863 is 36877097.

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

It is a cyclic number.

It is not a de Polignac number, because 79077863 - 2²² = 74883559 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 (79077853) 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, 2325803 + ... + 2325836.

It is an arithmetic number, because the mean of its divisors is an integer number (20932380).

Almost surely, 2^79077863 is an apocalyptic number.

79077863 is a deficient number, since it is larger than the sum of its proper divisors (4651657).

79077863 is a wasteful number, since it uses less digits than its factorization.

79077863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4651656.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 79077863 is about 8892.5734745348. The cubic root of 79077863 is about 429.2249659115.

The spelling of 79077863 in words is "seventy-nine million, seventy-seven thousand, eight hundred sixty-three".