90822617 has 2 divisors, whose sum is σ = 90822618. Its totient is φ = 90822616.

The previous prime is 90822583. The next prime is 90822623. The reversal of 90822617 is 71622809.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75620416 + 15202201 = 8696^2 + 3899^2 .

It is a cyclic number.

It is not a de Polignac number, because 90822617 - 2¹⁸ = 90560473 is a prime.

It is not a weakly prime, because it can be changed into another prime (90822637) 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, 45411308 + 45411309.

It is an arithmetic number, because the mean of its divisors is an integer number (45411309).

Almost surely, 2^90822617 is an apocalyptic number.

It is an amenable number.

90822617 is a deficient number, since it is larger than the sum of its proper divisors (1).

90822617 is an equidigital number, since it uses as much as digits as its factorization.

90822617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 90822617 is about 9530.0900835197. The cubic root of 90822617 is about 449.5016986222.

The spelling of 90822617 in words is "ninety million, eight hundred twenty-two thousand, six hundred seventeen".