853564 has 6 divisors (see below), whose sum is σ = 1493744. Its totient is φ = 426780.

The previous prime is 853547. The next prime is 853571. The reversal of 853564 is 465358.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106692 + ... + 106699.

2⁸⁵³⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

853564 is a deficient number, since it is larger than the sum of its proper divisors (640180).

853564 is a wasteful number, since it uses less digits than its factorization.

853564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213395 (or 213393 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 853564 is about 923.8852742630. The cubic root of 853564 is about 94.8590337740.

The spelling of 853564 in words is "eight hundred fifty-three thousand, five hundred sixty-four".