791609 has 8 divisors (see below), whose sum is σ = 974400. Its totient is φ = 626256.

The previous prime is 791599. The next prime is 791627. The reversal of 791609 is 906197.

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

It is a cyclic number.

It is not a de Polignac number, because 791609 - 2¹² = 787513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (791629) 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, 4259 + ... + 4440.

It is an arithmetic number, because the mean of its divisors is an integer number (121800).

2⁷⁹¹⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

791609 is a deficient number, since it is larger than the sum of its proper divisors (182791).

791609 is a wasteful number, since it uses less digits than its factorization.

791609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8719.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 791609 is about 889.7241145434. The cubic root of 791609 is about 92.5060721604.

The spelling of 791609 in words is "seven hundred ninety-one thousand, six hundred nine".