791603 has 4 divisors (see below), whose sum is σ = 805080. Its totient is φ = 778128.

The previous prime is 791599. The next prime is 791627. The reversal of 791603 is 306197.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 306197 = 127 ⋅2411.

It is a cyclic number.

It is not a de Polignac number, because 791603 - 2² = 791599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (791663) 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, 6650 + ... + 6767.

It is an arithmetic number, because the mean of its divisors is an integer number (201270).

2⁷⁹¹⁶⁰³ is an apocalyptic number.

791603 is a deficient number, since it is larger than the sum of its proper divisors (13477).

791603 is a wasteful number, since it uses less digits than its factorization.

791603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13476.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 791603 is about 889.7207427053. The cubic root of 791603 is about 92.5058384433.

The spelling of 791603 in words is "seven hundred ninety-one thousand, six hundred three".