90895117 has 2 divisors, whose sum is σ = 90895118. Its totient is φ = 90895116.

The previous prime is 90895097. The next prime is 90895121. The reversal of 90895117 is 71159809.

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., 81198121 + 9696996 = 9011^2 + 3114^2 .

It is a cyclic number.

It is not a de Polignac number, because 90895117 - 2¹⁵ = 90862349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90895117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90895127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45447558 + 45447559.

It is an arithmetic number, because the mean of its divisors is an integer number (45447559).

Almost surely, 2^90895117 is an apocalyptic number.

It is an amenable number.

90895117 is a deficient number, since it is larger than the sum of its proper divisors (1).

90895117 is an equidigital number, since it uses as much as digits as its factorization.

90895117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 40.

The square root of 90895117 is about 9533.8930663187. The cubic root of 90895117 is about 449.6212731166.

The spelling of 90895117 in words is "ninety million, eight hundred ninety-five thousand, one hundred seventeen".