916311885 has 8 divisors (see below), whose sum is σ = 1466099040. Its totient is φ = 488699664.

The previous prime is 916311863. The next prime is 916311887. The reversal of 916311885 is 588113619.

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

It is not a de Polignac number, because 916311885 - 2⁵ = 916311853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916311887) 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, 30543715 + ... + 30543744.

It is an arithmetic number, because the mean of its divisors is an integer number (183262380).

Almost surely, 2^916311885 is an apocalyptic number.

It is an amenable number.

916311885 is a deficient number, since it is larger than the sum of its proper divisors (549787155).

916311885 is a wasteful number, since it uses less digits than its factorization.

916311885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61087467.

The product of its digits is 51840, while the sum is 42.

The square root of 916311885 is about 30270.6439475608. The cubic root of 916311885 is about 971.2874409356.

The spelling of 916311885 in words is "nine hundred sixteen million, three hundred eleven thousand, eight hundred eighty-five".