873161 has 4 divisors (see below), whose sum is σ = 903300. Its totient is φ = 843024.

The previous prime is 873157. The next prime is 873209. The reversal of 873161 is 161378.

873161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 383161 + 490000 = 619^2 + 700^2 .

It is a cyclic number.

It is not a de Polignac number, because 873161 - 2² = 873157 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 873161.

It is not an unprimeable number, because it can be changed into a prime (873121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15026 + ... + 15083.

It is an arithmetic number, because the mean of its divisors is an integer number (225825).

2⁸⁷³¹⁶¹ is an apocalyptic number.

It is an amenable number.

873161 is a deficient number, since it is larger than the sum of its proper divisors (30139).

873161 is a wasteful number, since it uses less digits than its factorization.

873161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30138.

The product of its digits is 1008, while the sum is 26.

The square root of 873161 is about 934.4308428129. The cubic root of 873161 is about 95.5795048938.

The spelling of 873161 in words is "eight hundred seventy-three thousand, one hundred sixty-one".