90558369 has 12 divisors (see below), whose sum is σ = 142698192. Its totient is φ = 54883800.

The previous prime is 90558367. The next prime is 90558421. The reversal of 90558369 is 96385509.

90558369 is a `hidden beast` number, since 9 + 0 + 5 + 583 + 69 = 666.

It is not a de Polignac number, because 90558369 - 2¹ = 90558367 is a prime.

It is a super-2 number, since 2×90558369² = 16401636391880322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90558367) 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, 457267 + ... + 457464.

It is an arithmetic number, because the mean of its divisors is an integer number (11891516).

Almost surely, 2^90558369 is an apocalyptic number.

90558369 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

90558369 is a deficient number, since it is larger than the sum of its proper divisors (52139823).

90558369 is a wasteful number, since it uses less digits than its factorization.

90558369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914748 (or 914745 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 90558369 is about 9516.2161072561. The cubic root of 90558369 is about 449.0653340840.

It can be divided in two parts, 9055 and 8369, that added together give a square (17424 = 132²).

The spelling of 90558369 in words is "ninety million, five hundred fifty-eight thousand, three hundred sixty-nine".