878538 has 8 divisors (see below), whose sum is σ = 1757088. Its totient is φ = 292844.

The previous prime is 878513. The next prime is 878539. The reversal of 878538 is 835878.

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

878538 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 878496 and 878505.

It is not an unprimeable number, because it can be changed into a prime (878539) by changing a digit.

878538 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73206 + ... + 73217.

It is an arithmetic number, because the mean of its divisors is an integer number (219636).

2⁸⁷⁸⁵³⁸ is an apocalyptic number.

878538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

878538 is a wasteful number, since it uses less digits than its factorization.

878538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146428.

The product of its digits is 53760, while the sum is 39.

The square root of 878538 is about 937.3035794234. The cubic root of 878538 is about 95.7752991206.

The spelling of 878538 in words is "eight hundred seventy-eight thousand, five hundred thirty-eight".