798797 has 4 divisors (see below), whose sum is σ = 805980. Its totient is φ = 791616.

The previous prime is 798781. The next prime is 798799. The reversal of 798797 is 797897.

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

It can be written as a sum of positive squares in 2 ways, for example, as 111556 + 687241 = 334^2 + 829^2 .

It is a cyclic number.

It is not a de Polignac number, because 798797 - 2⁴ = 798781 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 (798799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3422 + ... + 3647.

It is an arithmetic number, because the mean of its divisors is an integer number (201495).

2⁷⁹⁸⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

798797 is a deficient number, since it is larger than the sum of its proper divisors (7183).

798797 is a wasteful number, since it uses less digits than its factorization.

798797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7182.

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

The square root of 798797 is about 893.7544405484. The cubic root of 798797 is about 92.7852214006.

Subtracting from 798797 its reverse (797897), we obtain a square (900 = 30²).

It can be divided in two parts, 79879 and 7, that multiplied together give a triangular number (559153 = T₁₀₅₇).

The spelling of 798797 in words is "seven hundred ninety-eight thousand, seven hundred ninety-seven".