90599 has 2 divisors, whose sum is σ = 90600. Its totient is φ = 90598.

The previous prime is 90583. The next prime is 90617. The reversal of 90599 is 99509.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90599 - 2⁴ = 90583 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45299 + 45300.

It is an arithmetic number, because the mean of its divisors is an integer number (45300).

2⁹⁰⁵⁹⁹ is an apocalyptic number.

90599 is a deficient number, since it is larger than the sum of its proper divisors (1).

90599 is an equidigital number, since it uses as much as digits as its factorization.

90599 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3645, while the sum is 32.

The square root of 90599 is about 300.9966777225. The cubic root of 90599 is about 44.9132485048.

The spelling of 90599 in words is "ninety thousand, five hundred ninety-nine".