916944361 has 8 divisors (see below), whose sum is σ = 940523400. Its totient is φ = 893597952.

The previous prime is 916944349. The next prime is 916944383. The reversal of 916944361 is 163449619.

It can be written as a sum of positive squares in 4 ways, for example, as 64304361 + 852640000 = 8019^2 + 29200^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-916944361 is a prime.

It is a super-2 number, since 2×916944361² = 1681573922339396642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (916944331) 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 7 ways as a sum of consecutive naturals, for example, 50160 + ... + 65953.

It is an arithmetic number, because the mean of its divisors is an integer number (117565425).

Almost surely, 2^916944361 is an apocalyptic number.

It is an amenable number.

916944361 is a deficient number, since it is larger than the sum of its proper divisors (23579039).

916944361 is a wasteful number, since it uses less digits than its factorization.

916944361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116315.

The product of its digits is 139968, while the sum is 43.

The square root of 916944361 is about 30281.0891646916. The cubic root of 916944361 is about 971.5108636653.

The spelling of 916944361 in words is "nine hundred sixteen million, nine hundred forty-four thousand, three hundred sixty-one".