90912486 has 16 divisors (see below), whose sum is σ = 207800064. Its totient is φ = 25974984.

The previous prime is 90912433. The next prime is 90912487. The reversal of 90912486 is 68421909.

It is a super-2 number, since 2×90912486² = 16530160221400392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90912487) 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, 1082250 + ... + 1082333.

It is an arithmetic number, because the mean of its divisors is an integer number (12987504).

Almost surely, 2^90912486 is an apocalyptic number.

90912486 is an abundant number, since it is smaller than the sum of its proper divisors (116887578).

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

90912486 is a wasteful number, since it uses less digits than its factorization.

90912486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164595.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 90912486 is about 9534.8039308630. The cubic root of 90912486 is about 449.6499104251.

The spelling of 90912486 in words is "ninety million, nine hundred twelve thousand, four hundred eighty-six".