797919 has 8 divisors (see below), whose sum is σ = 1086720. Its totient is φ = 520536.

The previous prime is 797917. The next prime is 797933. The reversal of 797919 is 919797.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 797919 - 2¹ = 797917 is a prime.

It is a super-2 number, since 2×797919² = 1273349461122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2689 + ... + 2970.

It is an arithmetic number, because the mean of its divisors is an integer number (135840).

2⁷⁹⁷⁹¹⁹ is an apocalyptic number.

797919 is a deficient number, since it is larger than the sum of its proper divisors (288801).

797919 is a wasteful number, since it uses less digits than its factorization.

797919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5709.

The product of its digits is 35721, while the sum is 42.

The square root of 797919 is about 893.2631191312. The cubic root of 797919 is about 92.7512138908.

It can be divided in two parts, 79791 and 9, that added together give a triangular number (79800 = T₃₉₉).

The spelling of 797919 in words is "seven hundred ninety-seven thousand, nine hundred nineteen".