90509376 has 28 divisors (see below), whose sum is σ = 239473232. Its totient is φ = 30169728.

The previous prime is 90509371. The next prime is 90509383. The reversal of 90509376 is 67390509.

It is not an unprimeable number, because it can be changed into a prime (90509371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235510 + ... + 235893.

Almost surely, 2^90509376 is an apocalyptic number.

90509376 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

90509376 is an abundant number, since it is smaller than the sum of its proper divisors (148963856).

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

90509376 is a wasteful number, since it uses less digits than its factorization.

90509376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471418 (or 471408 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 39.

The square root of 90509376 is about 9513.6415740767. The cubic root of 90509376 is about 448.9843365022.

The spelling of 90509376 in words is "ninety million, five hundred nine thousand, three hundred seventy-six".