86438079 has 24 divisors (see below), whose sum is σ = 153669152. Its totient is φ = 45593280.

The previous prime is 86438069. The next prime is 86438083. The reversal of 86438079 is 97083468.

It is a happy number.

It is not a de Polignac number, because 86438079 - 2⁴ = 86438063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86438069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51952 + ... + 53589.

Almost surely, 2^86438079 is an apocalyptic number.

86438079 is a deficient number, since it is larger than the sum of its proper divisors (67231073).

86438079 is a wasteful number, since it uses less digits than its factorization.

86438079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105567 (or 105564 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 86438079 is about 9297.2081293257. The cubic root of 86438079 is about 442.1487167032.

The spelling of 86438079 in words is "eighty-six million, four hundred thirty-eight thousand, seventy-nine".