86808518 has 8 divisors (see below), whose sum is σ = 131861280. Its totient is φ = 42854760.

The previous prime is 86808517. The next prime is 86808523. The reversal of 86808518 is 81580868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86808517) 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, 274553 + ... + 274868.

It is an arithmetic number, because the mean of its divisors is an integer number (16482660).

Almost surely, 2^86808518 is an apocalyptic number.

86808518 is a deficient number, since it is larger than the sum of its proper divisors (45052762).

86808518 is a wasteful number, since it uses less digits than its factorization.

86808518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549502.

The product of its (nonzero) digits is 122880, while the sum is 44.

The square root of 86808518 is about 9317.1088863445. The cubic root of 86808518 is about 442.7794406759.

The spelling of 86808518 in words is "eighty-six million, eight hundred eight thousand, five hundred eighteen".