86731418 has 8 divisors (see below), whose sum is σ = 131313312. Its totient is φ = 42960316.

The previous prime is 86731349. The next prime is 86731439. The reversal of 86731418 is 81413768.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202430 + ... + 202857.

It is an arithmetic number, because the mean of its divisors is an integer number (16414164).

Almost surely, 2^86731418 is an apocalyptic number.

86731418 is a deficient number, since it is larger than the sum of its proper divisors (44581894).

86731418 is a wasteful number, since it uses less digits than its factorization.

86731418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405396.

The product of its digits is 32256, while the sum is 38.

The square root of 86731418 is about 9312.9704176487. The cubic root of 86731418 is about 442.6483152694.

The spelling of 86731418 in words is "eighty-six million, seven hundred thirty-one thousand, four hundred eighteen".