797659 has 4 divisors (see below), whose sum is σ = 803880. Its totient is φ = 791440.

The previous prime is 797647. The next prime is 797681. The reversal of 797659 is 956797.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 956797 = 29 ⋅32993.

It is a cyclic number.

It is not a de Polignac number, because 797659 - 2⁵ = 797627 is a prime.

It is a Duffinian number.

797659 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (797689) 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, 2914 + ... + 3175.

It is an arithmetic number, because the mean of its divisors is an integer number (200970).

2⁷⁹⁷⁶⁵⁹ is an apocalyptic number.

797659 is a deficient number, since it is larger than the sum of its proper divisors (6221).

797659 is a wasteful number, since it uses less digits than its factorization.

797659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6220.

The product of its digits is 119070, while the sum is 43.

The square root of 797659 is about 893.1175734471. The cubic root of 797659 is about 92.7411385426.

The spelling of 797659 in words is "seven hundred ninety-seven thousand, six hundred fifty-nine".