878542 has 8 divisors (see below), whose sum is σ = 1506096. Its totient is φ = 376512.

The previous prime is 878539. The next prime is 878551. The reversal of 878542 is 245878.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 878498 and 878507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31363 + ... + 31390.

It is an arithmetic number, because the mean of its divisors is an integer number (188262).

2⁸⁷⁸⁵⁴² is an apocalyptic number.

878542 is a deficient number, since it is larger than the sum of its proper divisors (627554).

878542 is a wasteful number, since it uses less digits than its factorization.

878542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62762.

The product of its digits is 17920, while the sum is 34.

The square root of 878542 is about 937.3057132014. The cubic root of 878542 is about 95.7754444759.

The spelling of 878542 in words is "eight hundred seventy-eight thousand, five hundred forty-two".