849961 has 16 divisors (see below), whose sum is σ = 1036800. Its totient is φ = 681408.

The previous prime is 849943. The next prime is 849967. The reversal of 849961 is 169948.

849961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 849961 - 2⁷ = 849833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 849961.

It is not an unprimeable number, because it can be changed into a prime (849967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10720 + ... + 10798.

It is an arithmetic number, because the mean of its divisors is an integer number (64800).

2⁸⁴⁹⁹⁶¹ is an apocalyptic number.

It is an amenable number.

849961 is a deficient number, since it is larger than the sum of its proper divisors (186839).

849961 is a wasteful number, since it uses less digits than its factorization.

849961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168.

The product of its digits is 15552, while the sum is 37.

The square root of 849961 is about 921.9332947670. The cubic root of 849961 is about 94.7253749332.

The spelling of 849961 in words is "eight hundred forty-nine thousand, nine hundred sixty-one".