797879 has 4 divisors (see below), whose sum is σ = 807576. Its totient is φ = 788184.

The previous prime is 797869. The next prime is 797887. The reversal of 797879 is 978797.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-797879 is a prime.

It is a super-2 number, since 2×797879² = 1273221797282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797869) 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 in 3 ways as a sum of consecutive naturals, for example, 4724 + ... + 4889.

It is an arithmetic number, because the mean of its divisors is an integer number (201894).

2⁷⁹⁷⁸⁷⁹ is an apocalyptic number.

797879 is a deficient number, since it is larger than the sum of its proper divisors (9697).

797879 is an equidigital number, since it uses as much as digits as its factorization.

797879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9696.

The product of its digits is 222264, while the sum is 47.

The square root of 797879 is about 893.2407290311. The cubic root of 797879 is about 92.7496639797.

The spelling of 797879 in words is "seven hundred ninety-seven thousand, eight hundred seventy-nine".