90366559 has 8 divisors (see below), whose sum is σ = 92697440. Its totient is φ = 88063200.

The previous prime is 90366557. The next prime is 90366587. The reversal of 90366559 is 95566309.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90366559 - 2¹ = 90366557 is a prime.

It is a super-2 number, since 2×90366559² = 16332229971000962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90366557) 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, 147 + ... + 13444.

It is an arithmetic number, because the mean of its divisors is an integer number (11587180).

Almost surely, 2^90366559 is an apocalyptic number.

90366559 is a deficient number, since it is larger than the sum of its proper divisors (2330881).

90366559 is a wasteful number, since it uses less digits than its factorization.

90366559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13761.

The product of its (nonzero) digits is 218700, while the sum is 43.

The square root of 90366559 is about 9506.1327047333. The cubic root of 90366559 is about 448.7480576572.

The spelling of 90366559 in words is "ninety million, three hundred sixty-six thousand, five hundred fifty-nine".