853904 has 20 divisors (see below), whose sum is σ = 1676976. Its totient is φ = 421152.

The previous prime is 853903. The next prime is 853913. The reversal of 853904 is 409358.

It is not an unprimeable number, because it can be changed into a prime (853901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007 + ... + 1649.

2⁸⁵³⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

853904 is a deficient number, since it is larger than the sum of its proper divisors (823072).

853904 is a wasteful number, since it uses less digits than its factorization.

853904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 853904 is about 924.0692614734. The cubic root of 853904 is about 94.8716271628.

The spelling of 853904 in words is "eight hundred fifty-three thousand, nine hundred four".