916856429 has 16 divisors (see below), whose sum is σ = 971841024. Its totient is φ = 863214000.

The previous prime is 916856417. The next prime is 916856483. The reversal of 916856429 is 924658619.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-916856429 is a prime.

It is a super-2 number, since 2×916856429² = 1681251422797264082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916856029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631154 + ... + 632604.

It is an arithmetic number, because the mean of its divisors is an integer number (60740064).

Almost surely, 2^916856429 is an apocalyptic number.

It is an amenable number.

916856429 is a deficient number, since it is larger than the sum of its proper divisors (54984595).

916856429 is a wasteful number, since it uses less digits than its factorization.

916856429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888.

The product of its digits is 933120, while the sum is 50.

The square root of 916856429 is about 30279.6372006007. The cubic root of 916856429 is about 971.4798077554.

The spelling of 916856429 in words is "nine hundred sixteen million, eight hundred fifty-six thousand, four hundred twenty-nine".