917162641 has 2 divisors, whose sum is σ = 917162642. Its totient is φ = 917162640.

The previous prime is 917162639. The next prime is 917162647. The reversal of 917162641 is 146261719.

917162641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 476330625 + 440832016 = 21825^2 + 20996^2 .

It is a cyclic number.

It is not a de Polignac number, because 917162641 - 2¹ = 917162639 is a prime.

Together with 917162639, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 917162641.

It is not a weakly prime, because it can be changed into another prime (917162647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458581320 + 458581321.

It is an arithmetic number, because the mean of its divisors is an integer number (458581321).

Almost surely, 2^917162641 is an apocalyptic number.

It is an amenable number.

917162641 is a deficient number, since it is larger than the sum of its proper divisors (1).

917162641 is an equidigital number, since it uses as much as digits as its factorization.

917162641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 917162641 is about 30284.6931798887. The cubic root of 917162641 is about 971.5879474286.

The spelling of 917162641 in words is "nine hundred seventeen million, one hundred sixty-two thousand, six hundred forty-one".