84079131 has 4 divisors (see below), whose sum is σ = 112105512. Its totient is φ = 56052752.

The previous prime is 84079117. The next prime is 84079153. The reversal of 84079131 is 13197048.

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 84079131 - 2⁶ = 84079067 is a prime.

It is a super-2 number, since 2×84079131² = 14138600539430322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84079092 and 84079101.

It is not an unprimeable number, because it can be changed into a prime (84079181) 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, 14013186 + ... + 14013191.

It is an arithmetic number, because the mean of its divisors is an integer number (28026378).

Almost surely, 2^84079131 is an apocalyptic number.

84079131 is a deficient number, since it is larger than the sum of its proper divisors (28026381).

84079131 is a wasteful number, since it uses less digits than its factorization.

84079131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28026380.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 84079131 is about 9169.4673236781. The cubic root of 84079131 is about 438.0893929425.

The spelling of 84079131 in words is "eighty-four million, seventy-nine thousand, one hundred thirty-one".