916988 has 6 divisors (see below), whose sum is σ = 1604736. Its totient is φ = 458492.

The previous prime is 916973. The next prime is 916999. The reversal of 916988 is 889619.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 916988.

It is an unprimeable number.

916988 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114620 + ... + 114627.

It is an arithmetic number, because the mean of its divisors is an integer number (267456).

2⁹¹⁶⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

916988 is a deficient number, since it is larger than the sum of its proper divisors (687748).

916988 is a wasteful number, since it uses less digits than its factorization.

916988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229251 (or 229249 counting only the distinct ones).

The product of its digits is 31104, while the sum is 41.

The square root of 916988 is about 957.5949039129. The cubic root of 916988 is about 97.1526275393.

The spelling of 916988 in words is "nine hundred sixteen thousand, nine hundred eighty-eight".