878851 has 2 divisors, whose sum is σ = 878852. Its totient is φ = 878850.

The previous prime is 878837. The next prime is 878863. The reversal of 878851 is 158878.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-878851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 878851.

It is not a weakly prime, because it can be changed into another prime (878821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439425 + 439426.

It is an arithmetic number, because the mean of its divisors is an integer number (439426).

2⁸⁷⁸⁸⁵¹ is an apocalyptic number.

878851 is a deficient number, since it is larger than the sum of its proper divisors (1).

878851 is an equidigital number, since it uses as much as digits as its factorization.

878851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17920, while the sum is 37.

The square root of 878851 is about 937.4705328702. The cubic root of 878851 is about 95.7866718441.

The spelling of 878851 in words is "eight hundred seventy-eight thousand, eight hundred fifty-one".