90679499 has 2 divisors, whose sum is σ = 90679500. Its totient is φ = 90679498.

The previous prime is 90679493. The next prime is 90679541. The reversal of 90679499 is 99497609.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90679499 - 2⁴ = 90679483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90679499.

It is not a weakly prime, because it can be changed into another prime (90679493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45339749 + 45339750.

It is an arithmetic number, because the mean of its divisors is an integer number (45339750).

Almost surely, 2^90679499 is an apocalyptic number.

90679499 is a deficient number, since it is larger than the sum of its proper divisors (1).

90679499 is an equidigital number, since it uses as much as digits as its factorization.

90679499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The square root of 90679499 is about 9522.5783798297. The cubic root of 90679499 is about 449.2654666970.

The spelling of 90679499 in words is "ninety million, six hundred seventy-nine thousand, four hundred ninety-nine".