90369959 has 2 divisors, whose sum is σ = 90369960. Its totient is φ = 90369958.

The previous prime is 90369949. The next prime is 90369973. The reversal of 90369959 is 95996309.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90369959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90369949) 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, 45184979 + 45184980.

It is an arithmetic number, because the mean of its divisors is an integer number (45184980).

Almost surely, 2^90369959 is an apocalyptic number.

90369959 is a deficient number, since it is larger than the sum of its proper divisors (1).

90369959 is an equidigital number, since it uses as much as digits as its factorization.

90369959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 590490, while the sum is 50.

The square root of 90369959 is about 9506.3115349751. The cubic root of 90369959 is about 448.7536855660.

The spelling of 90369959 in words is "ninety million, three hundred sixty-nine thousand, nine hundred fifty-nine".