86461818 has 32 divisors (see below), whose sum is σ = 188308800. Its totient is φ = 26361216.

The previous prime is 86461801. The next prime is 86461819. The reversal of 86461818 is 81816468.

It is a self number, because there is not a number n which added to its sum of digits gives 86461818.

It is not an unprimeable number, because it can be changed into a prime (86461819) 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, 9771 + ... + 16382.

It is an arithmetic number, because the mean of its divisors is an integer number (5884650).

Almost surely, 2^86461818 is an apocalyptic number.

86461818 is an abundant number, since it is smaller than the sum of its proper divisors (101846982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86461818 is a wasteful number, since it uses less digits than its factorization.

86461818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26206.

The product of its digits is 73728, while the sum is 42.

The square root of 86461818 is about 9298.4847152641. The cubic root of 86461818 is about 442.1891896359.

The spelling of 86461818 in words is "eighty-six million, four hundred sixty-one thousand, eight hundred eighteen".