916055831 has 4 divisors (see below), whose sum is σ = 916117200. Its totient is φ = 915994464.

The previous prime is 916055821. The next prime is 916055851. The reversal of 916055831 is 138550619.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 916055831 - 2¹⁰ = 916054807 is a prime.

It is a super-2 number, since 2×916055831² = 1678316571018201122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916055801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7775 + ... + 43503.

It is an arithmetic number, because the mean of its divisors is an integer number (229029300).

Almost surely, 2^916055831 is an apocalyptic number.

916055831 is a deficient number, since it is larger than the sum of its proper divisors (61369).

916055831 is a wasteful number, since it uses less digits than its factorization.

916055831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61368.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 916055831 is about 30266.4142408710. The cubic root of 916055831 is about 971.1969603879.

The spelling of 916055831 in words is "nine hundred sixteen million, fifty-five thousand, eight hundred thirty-one".