879145 has 4 divisors (see below), whose sum is σ = 1054980. Its totient is φ = 703312.

The previous prime is 879143. The next prime is 879167. The reversal of 879145 is 541978.

It is a happy number.

879145 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 90601 + 788544 = 301^2 + 888^2 .

It is a cyclic number.

It is not a de Polignac number, because 879145 - 2¹ = 879143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 879145.

It is not an unprimeable number, because it can be changed into a prime (879143) 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, 87910 + ... + 87919.

It is an arithmetic number, because the mean of its divisors is an integer number (263745).

2⁸⁷⁹¹⁴⁵ is an apocalyptic number.

It is an amenable number.

879145 is a deficient number, since it is larger than the sum of its proper divisors (175835).

879145 is a wasteful number, since it uses less digits than its factorization.

879145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175834.

The product of its digits is 10080, while the sum is 34.

The square root of 879145 is about 937.6273246872. The cubic root of 879145 is about 95.7973517514.

It can be divided in two parts, 8791 and 45, that added together give a square (8836 = 94²).

The spelling of 879145 in words is "eight hundred seventy-nine thousand, one hundred forty-five".