86490584 has 32 divisors (see below), whose sum is σ = 171460800. Its totient is φ = 40788000.

The previous prime is 86490583. The next prime is 86490623. The reversal of 86490584 is 48509468.

It is a happy number.

It is a super-2 number, since 2×86490584² = 14961242241322112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86490581) 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, 37019 + ... + 39285.

It is an arithmetic number, because the mean of its divisors is an integer number (5358150).

Almost surely, 2^86490584 is an apocalyptic number.

It is an amenable number.

86490584 is a deficient number, since it is larger than the sum of its proper divisors (84970216).

86490584 is a wasteful number, since it uses less digits than its factorization.

86490584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543 (or 2539 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 86490584 is about 9300.0313977965. The cubic root of 86490584 is about 442.2382232407.

The spelling of 86490584 in words is "eighty-six million, four hundred ninety thousand, five hundred eighty-four".