90509283 has 12 divisors (see below), whose sum is σ = 130818168. Its totient is φ = 60301440.

The previous prime is 90509239. The next prime is 90509291. The reversal of 90509283 is 38290509.

It is not a de Polignac number, because 90509283 - 2⁶ = 90509219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90509183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25716 + ... + 29022.

It is an arithmetic number, because the mean of its divisors is an integer number (10901514).

Almost surely, 2^90509283 is an apocalyptic number.

90509283 is a deficient number, since it is larger than the sum of its proper divisors (40308885).

90509283 is a wasteful number, since it uses less digits than its factorization.

90509283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6354 (or 6351 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 90509283 is about 9513.6366863571. The cubic root of 90509283 is about 448.9841827223.

The spelling of 90509283 in words is "ninety million, five hundred nine thousand, two hundred eighty-three".