909668 has 12 divisors (see below), whose sum is σ = 1599612. Its totient is φ = 452640.

The previous prime is 909637. The next prime is 909679. The reversal of 909668 is 866909.

909668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 200704 + 708964 = 448^2 + 842^2 .

It is an unprimeable number.

909668 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 in 3 ways as a sum of consecutive naturals, for example, 698 + ... + 1518.

It is an arithmetic number, because the mean of its divisors is an integer number (133301).

2⁹⁰⁹⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

909668 is a deficient number, since it is larger than the sum of its proper divisors (689944).

909668 is a wasteful number, since it uses less digits than its factorization.

909668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102 (or 1100 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 909668 is about 953.7651702594. The cubic root of 909668 is about 96.8934245914.

The spelling of 909668 in words is "nine hundred nine thousand, six hundred sixty-eight".