854664 has 32 divisors (see below), whose sum is σ = 2160000. Its totient is φ = 281792.

The previous prime is 854647. The next prime is 854683. The reversal of 854664 is 466458.

It is a happy number.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3457 + ... + 3695.

It is an arithmetic number, because the mean of its divisors is an integer number (67500).

2⁸⁵⁴⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

854664 is an abundant number, since it is smaller than the sum of its proper divisors (1305336).

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

854664 is a wasteful number, since it uses less digits than its factorization.

854664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 393 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 854664 is about 924.4803946001. The cubic root of 854664 is about 94.8997650082.

The spelling of 854664 in words is "eight hundred fifty-four thousand, six hundred sixty-four".