878613 has 8 divisors (see below), whose sum is σ = 1212000. Its totient is φ = 565488.

The previous prime is 878609. The next prime is 878621. The reversal of 878613 is 316878.

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

It is not a de Polignac number, because 878613 - 2² = 878609 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

878613 is a modest number, since divided by 8613 gives 87 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878663) 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, 4963 + ... + 5136.

It is an arithmetic number, because the mean of its divisors is an integer number (151500).

2⁸⁷⁸⁶¹³ is an apocalyptic number.

It is an amenable number.

878613 is a deficient number, since it is larger than the sum of its proper divisors (333387).

878613 is a wasteful number, since it uses less digits than its factorization.

878613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10131.

The product of its digits is 8064, while the sum is 33.

The square root of 878613 is about 937.3435869520. The cubic root of 878613 is about 95.7780244601.

The spelling of 878613 in words is "eight hundred seventy-eight thousand, six hundred thirteen".