90584317 has 2 divisors, whose sum is σ = 90584318. Its totient is φ = 90584316.

The previous prime is 90584311. The next prime is 90584363. The reversal of 90584317 is 71348509.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90516196 + 68121 = 9514^2 + 261^2 .

It is a cyclic number.

It is not a de Polignac number, because 90584317 - 2³ = 90584309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90584311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45292158 + 45292159.

It is an arithmetic number, because the mean of its divisors is an integer number (45292159).

Almost surely, 2^90584317 is an apocalyptic number.

It is an amenable number.

90584317 is a deficient number, since it is larger than the sum of its proper divisors (1).

90584317 is an equidigital number, since it uses as much as digits as its factorization.

90584317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 90584317 is about 9517.5793666247. The cubic root of 90584317 is about 449.1082207314.

The spelling of 90584317 in words is "ninety million, five hundred eighty-four thousand, three hundred seventeen".