86888579 has 2 divisors, whose sum is σ = 86888580. Its totient is φ = 86888578.

The previous prime is 86888573. The next prime is 86888591. The reversal of 86888579 is 97588868.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86888579 - 2²⁰ = 85840003 is a prime.

It is not a weakly prime, because it can be changed into another prime (86888573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43444289 + 43444290.

It is an arithmetic number, because the mean of its divisors is an integer number (43444290).

Almost surely, 2^86888579 is an apocalyptic number.

86888579 is a deficient number, since it is larger than the sum of its proper divisors (1).

86888579 is an equidigital number, since it uses as much as digits as its factorization.

86888579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7741440, while the sum is 59.

The square root of 86888579 is about 9321.4043469855. The cubic root of 86888579 is about 442.9155197660.

The spelling of 86888579 in words is "eighty-six million, eight hundred eighty-eight thousand, five hundred seventy-nine".