878942 has 4 divisors (see below), whose sum is σ = 1318416. Its totient is φ = 439470.

The previous prime is 878939. The next prime is 878953. The reversal of 878942 is 249878.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 878896 and 878905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219734 + ... + 219737.

It is an arithmetic number, because the mean of its divisors is an integer number (329604).

2⁸⁷⁸⁹⁴² is an apocalyptic number.

878942 is a deficient number, since it is larger than the sum of its proper divisors (439474).

878942 is a wasteful number, since it uses less digits than its factorization.

878942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439473.

The product of its digits is 32256, while the sum is 38.

The square root of 878942 is about 937.5190664728. The cubic root of 878942 is about 95.7899777842.

The spelling of 878942 in words is "eight hundred seventy-eight thousand, nine hundred forty-two".