916837812 has 144 divisors (see below), whose sum is σ = 2767080960. Its totient is φ = 261423360.

The previous prime is 916837769. The next prime is 916837841. The reversal of 916837812 is 218738619.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 220093 + ... + 224219.

It is an arithmetic number, because the mean of its divisors is an integer number (19215840).

Almost surely, 2^916837812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 916837812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1383540480).

916837812 is an abundant number, since it is smaller than the sum of its proper divisors (1850243148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

916837812 is a wasteful number, since it uses less digits than its factorization.

916837812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4179 (or 4160 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 916837812 is about 30279.3297812220. The cubic root of 916837812 is about 971.4732323305.

The spelling of 916837812 in words is "nine hundred sixteen million, eight hundred thirty-seven thousand, eight hundred twelve".