86304091 has 8 divisors (see below), whose sum is σ = 88999344. Its totient is φ = 83628000.

The previous prime is 86304083. The next prime is 86304133. The reversal of 86304091 is 19040368.

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

It is a cyclic number.

It is not a de Polignac number, because 86304091 - 2³ = 86304083 is a prime.

It is a super-2 number, since 2×86304091² = 14896792246672562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86304011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4641 + ... + 13933.

It is an arithmetic number, because the mean of its divisors is an integer number (11124918).

Almost surely, 2^86304091 is an apocalyptic number.

86304091 is a deficient number, since it is larger than the sum of its proper divisors (2695253).

86304091 is a wasteful number, since it uses less digits than its factorization.

86304091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9581.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 86304091 is about 9289.9995156082. Note that the first 3 decimals coincide. The cubic root of 86304091 is about 441.9201397455.

It can be divided in two parts, 8630 and 4091, that added together give a palindrome (12721).

The spelling of 86304091 in words is "eighty-six million, three hundred four thousand, ninety-one".