90499 has 2 divisors, whose sum is σ = 90500. Its totient is φ = 90498.

The previous prime is 90481. The next prime is 90511. The reversal of 90499 is 99409.

It is a strong prime.

It is an emirp because it is prime and its reverse (99409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90499 - 2⁷ = 90371 is a prime.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 90499.

It is not a weakly prime, because it can be changed into another prime (90439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45249 + 45250.

It is an arithmetic number, because the mean of its divisors is an integer number (45250).

2⁹⁰⁴⁹⁹ is an apocalyptic number.

90499 is a deficient number, since it is larger than the sum of its proper divisors (1).

90499 is an equidigital number, since it uses as much as digits as its factorization.

90499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 90499 is about 300.8305170690. The cubic root of 90499 is about 44.8967178650.

The spelling of 90499 in words is "ninety thousand, four hundred ninety-nine".