878444 has 24 divisors (see below), whose sum is σ = 1777440. Its totient is φ = 372096.

The previous prime is 878443. The next prime is 878453. The reversal of 878444 is 444878.

It is a super-2 number, since 2×878444² = 1543327722272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (878443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3722 + ... + 3950.

It is an arithmetic number, because the mean of its divisors is an integer number (74060).

2⁸⁷⁸⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

878444 is an abundant number, since it is smaller than the sum of its proper divisors (898996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

878444 is a wasteful number, since it uses less digits than its factorization.

878444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 375 counting only the distinct ones).

The product of its digits is 28672, while the sum is 35.

The square root of 878444 is about 937.2534342428. The cubic root of 878444 is about 95.7718831427.

The spelling of 878444 in words is "eight hundred seventy-eight thousand, four hundred forty-four".