791491 has 4 divisors (see below), whose sum is σ = 793800. Its totient is φ = 789184.

The previous prime is 791489. The next prime is 791519. The reversal of 791491 is 194197.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 791491 - 2¹ = 791489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (791411) 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, 526 + ... + 1363.

It is an arithmetic number, because the mean of its divisors is an integer number (198450).

2⁷⁹¹⁴⁹¹ is an apocalyptic number.

791491 is a deficient number, since it is larger than the sum of its proper divisors (2309).

791491 is a wasteful number, since it uses less digits than its factorization.

791491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308.

The product of its digits is 2268, while the sum is 31.

The square root of 791491 is about 889.6577993813. The cubic root of 791491 is about 92.5014755060.

The spelling of 791491 in words is "seven hundred ninety-one thousand, four hundred ninety-one".