90759899 has 2 divisors, whose sum is σ = 90759900. Its totient is φ = 90759898.

The previous prime is 90759883. The next prime is 90759917. The reversal of 90759899 is 99895709.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90759899 - 2⁴ = 90759883 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90759499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45379949 + 45379950.

It is an arithmetic number, because the mean of its divisors is an integer number (45379950).

Almost surely, 2^90759899 is an apocalyptic number.

90759899 is a deficient number, since it is larger than the sum of its proper divisors (1).

90759899 is an equidigital number, since it uses as much as digits as its factorization.

90759899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1837080, while the sum is 56.

The square root of 90759899 is about 9526.7989902170. The cubic root of 90759899 is about 449.3982062679.

It can be divided in two parts, 907 and 59899, that added together give a palindrome (60806).

The spelling of 90759899 in words is "ninety million, seven hundred fifty-nine thousand, eight hundred ninety-nine".