90089663 has 2 divisors, whose sum is σ = 90089664. Its totient is φ = 90089662.

The previous prime is 90089651. The next prime is 90089707. The reversal of 90089663 is 36698009.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90089663 - 2⁶ = 90089599 is a prime.

It is a super-2 number, since 2×90089663² = 16232294758907138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90089663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90089063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45044831 + 45044832.

It is an arithmetic number, because the mean of its divisors is an integer number (45044832).

Almost surely, 2^90089663 is an apocalyptic number.

90089663 is a deficient number, since it is larger than the sum of its proper divisors (1).

90089663 is an equidigital number, since it uses as much as digits as its factorization.

90089663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 90089663 is about 9491.5574591318. The cubic root of 90089663 is about 448.2892460744.

The spelling of 90089663 in words is "ninety million, eighty-nine thousand, six hundred sixty-three".