90036659 has 2 divisors, whose sum is σ = 90036660. Its totient is φ = 90036658.

The previous prime is 90036647. The next prime is 90036701. The reversal of 90036659 is 95663009.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90036659 - 2⁴ = 90036643 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (90033659) 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, 45018329 + 45018330.

It is an arithmetic number, because the mean of its divisors is an integer number (45018330).

Almost surely, 2^90036659 is an apocalyptic number.

90036659 is a deficient number, since it is larger than the sum of its proper divisors (1).

90036659 is an equidigital number, since it uses as much as digits as its factorization.

90036659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 90036659 is about 9488.7648827442. The cubic root of 90036659 is about 448.2013122543.

The spelling of 90036659 in words is "ninety million, thirty-six thousand, six hundred fifty-nine".