873745 has 4 divisors (see below), whose sum is σ = 1048500. Its totient is φ = 698992.

The previous prime is 873739. The next prime is 873767. The reversal of 873745 is 547378.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 690561 + 183184 = 831^2 + 428^2 .

It is a cyclic number.

It is not a de Polignac number, because 873745 - 2⁷ = 873617 is a prime.

It is an Ulam number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 873745.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87370 + ... + 87379.

It is an arithmetic number, because the mean of its divisors is an integer number (262125).

2⁸⁷³⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

873745 is a deficient number, since it is larger than the sum of its proper divisors (174755).

873745 is a wasteful number, since it uses less digits than its factorization.

873745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174754.

The product of its digits is 23520, while the sum is 34.

The square root of 873745 is about 934.7432802647. The cubic root of 873745 is about 95.6008090943.

The spelling of 873745 in words is "eight hundred seventy-three thousand, seven hundred forty-five".