904666 has 24 divisors (see below), whose sum is σ = 1645920. Its totient is φ = 365256.

The previous prime is 904663. The next prime is 904667. The reversal of 904666 is 666409.

It is not an unprimeable number, because it can be changed into a prime (904661) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4965 + ... + 5143.

It is an arithmetic number, because the mean of its divisors is an integer number (68580).

2⁹⁰⁴⁶⁶⁶ is an apocalyptic number.

904666 is a deficient number, since it is larger than the sum of its proper divisors (741254).

904666 is a wasteful number, since it uses less digits than its factorization.

904666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 904666 is about 951.1393168196. The cubic root of 904666 is about 96.7155018144.

The spelling of 904666 in words is "nine hundred four thousand, six hundred sixty-six".