797697 has 12 divisors (see below), whose sum is σ = 1171924. Its totient is φ = 522720.

The previous prime is 797689. The next prime is 797701. The reversal of 797697 is 796797.

It can be written as a sum of positive squares in 2 ways, for example, as 408321 + 389376 = 639^2 + 624^2 .

It is not a de Polignac number, because 797697 - 2³ = 797689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (797627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178 + ... + 1275.

It is a Proth number, since it is equal to 779 ⋅ 2¹⁰ + 1 and 779 < 2¹⁰.

2⁷⁹⁷⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

797697 is a deficient number, since it is larger than the sum of its proper divisors (374227).

797697 is a wasteful number, since it uses less digits than its factorization.

797697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520 (or 1517 counting only the distinct ones).

The product of its digits is 166698, while the sum is 45.

The square root of 797697 is about 893.1388469885. The cubic root of 797697 is about 92.7426112301.

Subtracting from 797697 its reverse (796797), we obtain a square (900 = 30²).

It can be divided in two parts, 79 and 7697, that added together give a 5-th power (7776 = 6⁵).

The spelling of 797697 in words is "seven hundred ninety-seven thousand, six hundred ninety-seven".