90895331 has 2 divisors, whose sum is σ = 90895332. Its totient is φ = 90895330.

The previous prime is 90895291. The next prime is 90895361. The reversal of 90895331 is 13359809.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90895331 - 2¹⁸ = 90633187 is a prime.

It is a super-2 number, since 2×90895331² = 16523922395199122, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (90895361) 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, 45447665 + 45447666.

It is an arithmetic number, because the mean of its divisors is an integer number (45447666).

Almost surely, 2^90895331 is an apocalyptic number.

90895331 is a deficient number, since it is larger than the sum of its proper divisors (1).

90895331 is an equidigital number, since it uses as much as digits as its factorization.

90895331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 90895331 is about 9533.9042894294. The cubic root of 90895331 is about 449.6216259734.

The spelling of 90895331 in words is "ninety million, eight hundred ninety-five thousand, three hundred thirty-one".