791217 has 24 divisors (see below), whose sum is σ = 1376960. Its totient is φ = 427680.

The previous prime is 791209. The next prime is 791227. The reversal of 791217 is 712197.

It is not a de Polignac number, because 791217 - 2³ = 791209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (791227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 867 + ... + 1527.

2⁷⁹¹²¹⁷ is an apocalyptic number.

It is an amenable number.

791217 is a deficient number, since it is larger than the sum of its proper divisors (585743).

791217 is a wasteful number, since it uses less digits than its factorization.

791217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 690 counting only the distinct ones).

The product of its digits is 882, while the sum is 27.

The square root of 791217 is about 889.5037942583. The cubic root of 791217 is about 92.4908001564.

It can be divided in two parts, 79 and 1217, that added together give a 4-th power (1296 = 6⁴).

The spelling of 791217 in words is "seven hundred ninety-one thousand, two hundred seventeen".