849636 has 24 divisors (see below), whose sum is σ = 2203040. Its totient is φ = 283176.

The previous prime is 849601. The next prime is 849649. The reversal of 849636 is 636948.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 849636.

It is an unprimeable number.

849636 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 7 ways as a sum of consecutive naturals, for example, 3826 + ... + 4041.

2⁸⁴⁹⁶³⁶ is an apocalyptic number.

It is an amenable number.

849636 is an abundant number, since it is smaller than the sum of its proper divisors (1353404).

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

849636 is a wasteful number, since it uses less digits than its factorization.

849636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7880 (or 7872 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 849636 is about 921.7570178740. The cubic root of 849636 is about 94.7132999982.

It can be divided in two parts, 849 and 636, that added together give a triangular number (1485 = T₅₄).

The spelling of 849636 in words is "eight hundred forty-nine thousand, six hundred thirty-six".