90398406 has 16 divisors (see below), whose sum is σ = 206625024. Its totient is φ = 25828104.

The previous prime is 90398393. The next prime is 90398419. The reversal of 90398406 is 60489309.

It is an interprime number because it is at equal distance from previous prime (90398393) and next prime (90398419).

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, 1076130 + ... + 1076213.

It is an arithmetic number, because the mean of its divisors is an integer number (12914064).

Almost surely, 2^90398406 is an apocalyptic number.

90398406 is an abundant number, since it is smaller than the sum of its proper divisors (116226618).

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

90398406 is a wasteful number, since it uses less digits than its factorization.

90398406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152355.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 90398406 is about 9507.8076337292. The cubic root of 90398406 is about 448.8007674244.

The spelling of 90398406 in words is "ninety million, three hundred ninety-eight thousand, four hundred six".