86858079 has 16 divisors (see below), whose sum is σ = 144387840. Its totient is φ = 45120960.

The previous prime is 86858047. The next prime is 86858111. The reversal of 86858079 is 97085868.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86858047) and next prime (86858111).

It is not a de Polignac number, because 86858079 - 2⁵ = 86858047 is a prime.

It is a super-3 number, since 3×86858079³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86858029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187774 + ... + 188235.

It is an arithmetic number, because the mean of its divisors is an integer number (9024240).

Almost surely, 2^86858079 is an apocalyptic number.

86858079 is a deficient number, since it is larger than the sum of its proper divisors (57529761).

86858079 is a wasteful number, since it uses less digits than its factorization.

86858079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376030.

The product of its (nonzero) digits is 967680, while the sum is 51.

The square root of 86858079 is about 9319.7681838123. The cubic root of 86858079 is about 442.8636890019.

The spelling of 86858079 in words is "eighty-six million, eight hundred fifty-eight thousand, seventy-nine".