90959117 has 2 divisors, whose sum is σ = 90959118. Its totient is φ = 90959116.

The previous prime is 90959107. The next prime is 90959123. The reversal of 90959117 is 71195909.

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., 80532676 + 10426441 = 8974^2 + 3229^2 .

It is an emirp because it is prime and its reverse (71195909) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90959117 - 2⁴ = 90959101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90959107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45479558 + 45479559.

It is an arithmetic number, because the mean of its divisors is an integer number (45479559).

Almost surely, 2^90959117 is an apocalyptic number.

It is an amenable number.

90959117 is a deficient number, since it is larger than the sum of its proper divisors (1).

90959117 is an equidigital number, since it uses as much as digits as its factorization.

90959117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25515, while the sum is 41.

The square root of 90959117 is about 9537.2489219900. The cubic root of 90959117 is about 449.7267757051.

The spelling of 90959117 in words is "ninety million, nine hundred fifty-nine thousand, one hundred seventeen".