79311377 has 4 divisors (see below), whose sum is σ = 83485680. Its totient is φ = 75137076.

The previous prime is 79311367. The next prime is 79311431. The reversal of 79311377 is 77311397.

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 79311377 - 2¹⁸ = 79049233 is a prime.

It is a super-2 number, since 2×79311377² = 12580589043272258, which contains 22 as substring.

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 79311377.

It is not an unprimeable number, because it can be changed into a prime (79311347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2087123 + ... + 2087160.

It is an arithmetic number, because the mean of its divisors is an integer number (20871420).

Almost surely, 2^79311377 is an apocalyptic number.

It is an amenable number.

79311377 is a deficient number, since it is larger than the sum of its proper divisors (4174303).

79311377 is a wasteful number, since it uses less digits than its factorization.

79311377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4174302.

The product of its digits is 27783, while the sum is 38.

The square root of 79311377 is about 8905.6935159481. The cubic root of 79311377 is about 429.6470458629.

The spelling of 79311377 in words is "seventy-nine million, three hundred eleven thousand, three hundred seventy-seven".