86945079 has 32 divisors (see below), whose sum is σ = 129850560. Its totient is φ = 51397632.

The previous prime is 86945057. The next prime is 86945087. The reversal of 86945079 is 97054968.

It is not a de Polignac number, because 86945079 - 2⁹ = 86944567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86945099) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128089 + ... + 128765.

It is an arithmetic number, because the mean of its divisors is an integer number (4057830).

Almost surely, 2^86945079 is an apocalyptic number.

86945079 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

86945079 is a deficient number, since it is larger than the sum of its proper divisors (42905481).

86945079 is a wasteful number, since it uses less digits than its factorization.

86945079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 86945079 is about 9324.4345136850. The cubic root of 86945079 is about 443.0115020954.

The spelling of 86945079 in words is "eighty-six million, nine hundred forty-five thousand, seventy-nine".