873945 has 12 divisors (see below), whose sum is σ = 1514916. Its totient is φ = 466080.

The previous prime is 873913. The next prime is 873959. The reversal of 873945 is 549378.

It can be written as a sum of positive squares in 2 ways, for example, as 646416 + 227529 = 804^2 + 477^2 .

It is not a de Polignac number, because 873945 - 2⁵ = 873913 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9666 + ... + 9755.

It is an arithmetic number, because the mean of its divisors is an integer number (126243).

2⁸⁷³⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

873945 is a deficient number, since it is larger than the sum of its proper divisors (640971).

873945 is a wasteful number, since it uses less digits than its factorization.

873945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19432 (or 19429 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 873945 is about 934.8502553885. The cubic root of 873945 is about 95.6081028711.

The spelling of 873945 in words is "eight hundred seventy-three thousand, nine hundred forty-five".