79860953 has 4 divisors (see below), whose sum is σ = 79899408. Its totient is φ = 79822500.

The previous prime is 79860941. The next prime is 79860961. The reversal of 79860953 is 35906897.

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 79860953 - 2²² = 75666649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79860898 and 79860907.

It is not an unprimeable number, because it can be changed into a prime (79880953) 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, 15923 + ... + 20328.

It is an arithmetic number, because the mean of its divisors is an integer number (19974852).

Almost surely, 2^79860953 is an apocalyptic number.

It is an amenable number.

79860953 is a deficient number, since it is larger than the sum of its proper divisors (38455).

79860953 is a wasteful number, since it uses less digits than its factorization.

79860953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38454.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 79860953 is about 8936.4955659363. The cubic root of 79860953 is about 430.6371535010.

The spelling of 79860953 in words is "seventy-nine million, eight hundred sixty thousand, nine hundred fifty-three".