86218486 has 4 divisors (see below), whose sum is σ = 129327732. Its totient is φ = 43109242.

The previous prime is 86218477. The next prime is 86218493. The reversal of 86218486 is 68481268.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21554620 + ... + 21554623.

It is an arithmetic number, because the mean of its divisors is an integer number (32331933).

Almost surely, 2^86218486 is an apocalyptic number.

86218486 is a deficient number, since it is larger than the sum of its proper divisors (43109246).

86218486 is a wasteful number, since it uses less digits than its factorization.

86218486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43109245.

The product of its digits is 147456, while the sum is 43.

The square root of 86218486 is about 9285.3909987679. The cubic root of 86218486 is about 441.7739779276.

The spelling of 86218486 in words is "eighty-six million, two hundred eighteen thousand, four hundred eighty-six".