1838713 has 4 divisors (see below), whose sum is σ = 1841508. Its totient is φ = 1835920.

The previous prime is 1838693. The next prime is 1838717. The reversal of 1838713 is 3178381.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1016064 + 822649 = 1008^2 + 907^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1838713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1838717) 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, 195 + ... + 1927.

It is an arithmetic number, because the mean of its divisors is an integer number (460377).

2^1838713 is an apocalyptic number.

It is an amenable number.

1838713 is a deficient number, since it is larger than the sum of its proper divisors (2795).

1838713 is a wasteful number, since it uses less digits than its factorization.

1838713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2794.

The product of its digits is 4032, while the sum is 31.

The square root of 1838713 is about 1355.9915191475. The cubic root of 1838713 is about 122.5099367200.

The spelling of 1838713 in words is "one million, eight hundred thirty-eight thousand, seven hundred thirteen".