916664 has 16 divisors (see below), whose sum is σ = 1964400. Its totient is φ = 392832.

The previous prime is 916651. The next prime is 916679. The reversal of 916664 is 466619.

It is a self number, because there is not a number n which added to its sum of digits gives 916664.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8129 + ... + 8240.

It is an arithmetic number, because the mean of its divisors is an integer number (122775).

2⁹¹⁶⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

916664 is an abundant number, since it is smaller than the sum of its proper divisors (1047736).

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

916664 is a wasteful number, since it uses less digits than its factorization.

916664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16382 (or 16378 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 916664 is about 957.4257151341. The cubic root of 916664 is about 97.1411838565.

The spelling of 916664 in words is "nine hundred sixteen thousand, six hundred sixty-four".