797665 has 8 divisors (see below), whose sum is σ = 1044288. Its totient is φ = 580080.

The previous prime is 797647. The next prime is 797681. The reversal of 797665 is 566797.

797665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 797665 - 2⁵ = 797633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7197 + ... + 7306.

It is an arithmetic number, because the mean of its divisors is an integer number (130536).

2⁷⁹⁷⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

797665 is a deficient number, since it is larger than the sum of its proper divisors (246623).

797665 is a wasteful number, since it uses less digits than its factorization.

797665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14519.

The product of its digits is 79380, while the sum is 40.

The square root of 797665 is about 893.1209324610. The cubic root of 797665 is about 92.7413710753.

It can be divided in two parts, 79 and 7665, that added together give a square (7744 = 88²).

The spelling of 797665 in words is "seven hundred ninety-seven thousand, six hundred sixty-five".