879799 has 2 divisors, whose sum is σ = 879800.
Its totient is φ = 879798.
The previous prime is 879797. The next prime is 879817. The reversal of 879799 is 997978.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 879799 - 21 = 879797 is a prime.
Together with 879797, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (879797) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439899 + 439900.
It is an arithmetic number, because the mean of its divisors is an integer number (439900).
2879799 is an apocalyptic number.
879799 is a deficient number, since it is larger than the sum of its proper divisors (1).
879799 is an equidigital number, since it uses as much as digits as its factorization.
879799 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 285768, while the sum is 49.
The square root of 879799 is about 937.9760124865.
The cubic root of 879799 is about 95.8211005600.
The spelling of 879799 in words is "eight hundred seventy-nine thousand, seven hundred ninety-nine".