2091713 has 6 divisors (see below), whose sum is σ = 2265174. Its totient is φ = 1930656.

The previous prime is 2091709. The next prime is 2091737. The reversal of 2091713 is 3171902.

It can be written as a sum of positive squares in 3 ways, for example, as 97969 + 1993744 = 313^2 + 1412^2 .

It is not a de Polignac number, because 2091713 - 2² = 2091709 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2091703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6020 + ... + 6357.

It is an arithmetic number, because the mean of its divisors is an integer number (377529).

2^2091713 is an apocalyptic number.

It is an amenable number.

2091713 is a deficient number, since it is larger than the sum of its proper divisors (173461).

2091713 is a wasteful number, since it uses less digits than its factorization.

2091713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12403 (or 12390 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 2091713 is about 1446.2755615719. The cubic root of 2091713 is about 127.8892474603.

The spelling of 2091713 in words is "two million, ninety-one thousand, seven hundred thirteen".