90230317 has 2 divisors, whose sum is σ = 90230318. Its totient is φ = 90230316.

The previous prime is 90230291. The next prime is 90230323. The reversal of 90230317 is 71303209.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53494596 + 36735721 = 7314^2 + 6061^2 .

It is a cyclic number.

It is not a de Polignac number, because 90230317 - 2¹¹ = 90228269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90230291 and 90230300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90230347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45115158 + 45115159.

It is an arithmetic number, because the mean of its divisors is an integer number (45115159).

Almost surely, 2^90230317 is an apocalyptic number.

It is an amenable number.

90230317 is a deficient number, since it is larger than the sum of its proper divisors (1).

90230317 is an equidigital number, since it uses as much as digits as its factorization.

90230317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 90230317 is about 9498.9639961419. The cubic root of 90230317 is about 448.5224244710.

The spelling of 90230317 in words is "ninety million, two hundred thirty thousand, three hundred seventeen".