1791313 has 4 divisors (see below), whose sum is σ = 1803328. Its totient is φ = 1779300.

The previous prime is 1791289. The next prime is 1791319. The reversal of 1791313 is 3131971.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3131971 = 29 ⋅107999.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1791313 is a prime.

It is a Duffinian number.

1791313 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1791319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5781 + ... + 6082.

It is an arithmetic number, because the mean of its divisors is an integer number (450832).

2^1791313 is an apocalyptic number.

It is an amenable number.

1791313 is a deficient number, since it is larger than the sum of its proper divisors (12015).

1791313 is a wasteful number, since it uses less digits than its factorization.

1791313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12014.

The product of its digits is 567, while the sum is 25.

The square root of 1791313 is about 1338.3994172145. The cubic root of 1791313 is about 121.4480350412.

The spelling of 1791313 in words is "one million, seven hundred ninety-one thousand, three hundred thirteen".