799877 has 6 divisors (see below), whose sum is σ = 866322. Its totient is φ = 738192.

The previous prime is 799873. The next prime is 799891. The reversal of 799877 is 778997.

It can be written as a sum of positive squares in 3 ways, for example, as 23716 + 776161 = 154^2 + 881^2 .

It is not a de Polignac number, because 799877 - 2² = 799873 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2198 + ... + 2535.

It is an arithmetic number, because the mean of its divisors is an integer number (144387).

2⁷⁹⁹⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

799877 is a deficient number, since it is larger than the sum of its proper divisors (66445).

799877 is a wasteful number, since it uses less digits than its factorization.

799877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4759 (or 4746 counting only the distinct ones).

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

The square root of 799877 is about 894.3584292665. The cubic root of 799877 is about 92.8270187999.

The spelling of 799877 in words is "seven hundred ninety-nine thousand, eight hundred seventy-seven".