849564 has 18 divisors (see below), whose sum is σ = 2147600. Its totient is φ = 283176.

The previous prime is 849539. The next prime is 849571. The reversal of 849564 is 465948.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 23599 = 849564 / (8 + 4 + 9 + 5 + 6 + 4).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 849564.

It is an unprimeable number.

849564 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 5 ways as a sum of consecutive naturals, for example, 11764 + ... + 11835.

2⁸⁴⁹⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

849564 is an abundant number, since it is smaller than the sum of its proper divisors (1298036).

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

849564 is a wasteful number, since it uses less digits than its factorization.

849564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23609 (or 23604 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 849564 is about 921.7179612007. The cubic root of 849564 is about 94.7106245191.

The spelling of 849564 in words is "eight hundred forty-nine thousand, five hundred sixty-four".