878849 has 6 divisors (see below), whose sum is σ = 933894. Its totient is φ = 826880.

The previous prime is 878837. The next prime is 878851. The reversal of 878849 is 948878.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 628849 + 250000 = 793^2 + 500^2 .

It is not a de Polignac number, because 878849 - 2⁴ = 878833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (878869) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1232 + ... + 1809.

It is an arithmetic number, because the mean of its divisors is an integer number (155649).

2⁸⁷⁸⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

878849 is a deficient number, since it is larger than the sum of its proper divisors (55045).

878849 is a wasteful number, since it uses less digits than its factorization.

878849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3075 (or 3058 counting only the distinct ones).

The product of its digits is 129024, while the sum is 44.

The square root of 878849 is about 937.4694661694. The cubic root of 878849 is about 95.7865991835.

The spelling of 878849 in words is "eight hundred seventy-eight thousand, eight hundred forty-nine".