878144 has 14 divisors (see below), whose sum is σ = 1742694. Its totient is φ = 439040.

The previous prime is 878131. The next prime is 878147. The reversal of 878144 is 441878.

It can be written as a sum of positive squares in only one way, i.e., 640000 + 238144 = 800^2 + 488^2 .

It is a super-2 number, since 2×878144² = 1542273769472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

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 878144.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 878144.

It is not an unprimeable number, because it can be changed into a prime (878147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6797 + ... + 6924.

2⁸⁷⁸¹⁴⁴ is an apocalyptic number.

It is an amenable number.

878144 is a deficient number, since it is larger than the sum of its proper divisors (864550).

878144 is a wasteful number, since it uses less digits than its factorization.

878144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13733 (or 13723 counting only the distinct ones).

The product of its digits is 7168, while the sum is 32.

The square root of 878144 is about 937.0933784848. The cubic root of 878144 is about 95.7609794553.

The spelling of 878144 in words is "eight hundred seventy-eight thousand, one hundred forty-four".