917241994 has 16 divisors (see below), whose sum is σ = 1400006376. Its totient is φ = 450590400.

The previous prime is 917241943. The next prime is 917242031. The reversal of 917241994 is 499142719.

It can be written as a sum of positive squares in 4 ways, for example, as 523814769 + 393427225 = 22887^2 + 19835^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117864 + ... + 125404.

Almost surely, 2^917241994 is an apocalyptic number.

917241994 is a deficient number, since it is larger than the sum of its proper divisors (482764382).

917241994 is a wasteful number, since it uses less digits than its factorization.

917241994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8601.

The product of its digits is 163296, while the sum is 46.

The square root of 917241994 is about 30286.0032688369. The cubic root of 917241994 is about 971.6159672481.

The spelling of 917241994 in words is "nine hundred seventeen million, two hundred forty-one thousand, nine hundred ninety-four".