878699 has 2 divisors, whose sum is σ = 878700. Its totient is φ = 878698.

The previous prime is 878681. The next prime is 878719. The reversal of 878699 is 996878.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 878699 - 2⁸ = 878443 is a prime.

It is a super-2 number, since 2×878699² = 1544223865202, which contains 22 as substring.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 878699.

It is not a weakly prime, because it can be changed into another prime (878609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439349 + 439350.

It is an arithmetic number, because the mean of its divisors is an integer number (439350).

2⁸⁷⁸⁶⁹⁹ is an apocalyptic number.

878699 is a deficient number, since it is larger than the sum of its proper divisors (1).

878699 is an equidigital number, since it uses as much as digits as its factorization.

878699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 47.

The square root of 878699 is about 937.3894601498. The cubic root of 878699 is about 95.7811493252.

It can be divided in two parts, 87869 and 9, that added together give a palindrome (87878).

The spelling of 878699 in words is "eight hundred seventy-eight thousand, six hundred ninety-nine".