873445 has 8 divisors (see below), whose sum is σ = 1062936. Its totient is φ = 688896.

The previous prime is 873437. The next prime is 873461. The reversal of 873445 is 544378.

It can be written as a sum of positive squares in 4 ways, for example, as 1089 + 872356 = 33^2 + 934^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 873445 - 2³ = 873437 is a prime.

It is a d-powerful number, because it can be written as 8⁵ + 7⁷ + 4² + 3⁶ + 4⁷ + 5 .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 832 + ... + 1561.

It is an arithmetic number, because the mean of its divisors is an integer number (132867).

2⁸⁷³⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

873445 is a deficient number, since it is larger than the sum of its proper divisors (189491).

873445 is a wasteful number, since it uses less digits than its factorization.

873445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471.

The product of its digits is 13440, while the sum is 31.

The square root of 873445 is about 934.5827946201. The cubic root of 873445 is about 95.5898663418.

The spelling of 873445 in words is "eight hundred seventy-three thousand, four hundred forty-five".