86990492 has 24 divisors (see below), whose sum is σ = 154800912. Its totient is φ = 42768000.

The previous prime is 86990461. The next prime is 86990537. The reversal of 86990492 is 29409968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65192 + ... + 66512.

It is an arithmetic number, because the mean of its divisors is an integer number (6450038).

Almost surely, 2^86990492 is an apocalyptic number.

It is an amenable number.

86990492 is a deficient number, since it is larger than the sum of its proper divisors (67810420).

86990492 is a wasteful number, since it uses less digits than its factorization.

86990492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589 (or 1587 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 86990492 is about 9326.8693568635. The cubic root of 86990492 is about 443.0886196653.

The spelling of 86990492 in words is "eighty-six million, nine hundred ninety thousand, four hundred ninety-two".