79377381 has 16 divisors (see below), whose sum is σ = 117921600. Its totient is φ = 52771824.

The previous prime is 79377367. The next prime is 79377401. The reversal of 79377381 is 18377397.

It is not a de Polignac number, because 79377381 - 2⁵ = 79377349 is a prime.

It is a super-2 number, since 2×79377381² = 12601537228838322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79377341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6355 + ... + 14111.

It is an arithmetic number, because the mean of its divisors is an integer number (7370100).

Almost surely, 2^79377381 is an apocalyptic number.

It is an amenable number.

79377381 is a deficient number, since it is larger than the sum of its proper divisors (38544219).

79377381 is a wasteful number, since it uses less digits than its factorization.

79377381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8145 (or 8139 counting only the distinct ones).

The product of its digits is 222264, while the sum is 45.

The square root of 79377381 is about 8909.3984645429. The cubic root of 79377381 is about 429.7661988418.

The spelling of 79377381 in words is "seventy-nine million, three hundred seventy-seven thousand, three hundred eighty-one".