916691933 has 12 divisors (see below), whose sum is σ = 961191420. Its totient is φ = 874173696.

The previous prime is 916691929. The next prime is 916691939. The reversal of 916691933 is 339196619.

It can be written as a sum of positive squares in 2 ways, for example, as 719205124 + 197486809 = 26818^2 + 14053^2 .

It is not a de Polignac number, because 916691933 - 2² = 916691929 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916691939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184283 + ... + 189191.

It is an arithmetic number, because the mean of its divisors is an integer number (80099285).

Almost surely, 2^916691933 is an apocalyptic number.

It is an amenable number.

916691933 is a deficient number, since it is larger than the sum of its proper divisors (44499487).

916691933 is a wasteful number, since it uses less digits than its factorization.

916691933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5308 (or 5285 counting only the distinct ones).

The product of its digits is 236196, while the sum is 47.

The square root of 916691933 is about 30276.9207978619. The cubic root of 916691933 is about 971.4217055650.

The spelling of 916691933 in words is "nine hundred sixteen million, six hundred ninety-one thousand, nine hundred thirty-three".