878797 has 2 divisors, whose sum is σ = 878798. Its totient is φ = 878796.

The previous prime is 878789. The next prime is 878821. The reversal of 878797 is 797878.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 763876 + 114921 = 874^2 + 339^2 .

It is a cyclic number.

It is not a de Polignac number, because 878797 - 2³ = 878789 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (878737) 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, 439398 + 439399.

It is an arithmetic number, because the mean of its divisors is an integer number (439399).

2⁸⁷⁸⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

878797 is a deficient number, since it is larger than the sum of its proper divisors (1).

878797 is an equidigital number, since it uses as much as digits as its factorization.

878797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 197568, while the sum is 46.

The square root of 878797 is about 937.4417315226. The cubic root of 878797 is about 95.7847099695.

The spelling of 878797 in words is "eight hundred seventy-eight thousand, seven hundred ninety-seven".