916983988 has 12 divisors (see below), whose sum is σ = 1608020512. Its totient is φ = 457549560.

The previous prime is 916983923. The next prime is 916983989. The reversal of 916983988 is 889389619.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916983989) 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, 233418 + ... + 237313.

Almost surely, 2^916983988 is an apocalyptic number.

It is an amenable number.

916983988 is a deficient number, since it is larger than the sum of its proper divisors (691036524).

916983988 is a wasteful number, since it uses less digits than its factorization.

916983988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471222 (or 471220 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 61.

The square root of 916983988 is about 30281.7434768872. The cubic root of 916983988 is about 971.5248585189.

The spelling of 916983988 in words is "nine hundred sixteen million, nine hundred eighty-three thousand, nine hundred eighty-eight".