1816713 has 12 divisors (see below), whose sum is σ = 2652468. Its totient is φ = 1198080.

The previous prime is 1816699. The next prime is 1816729. The reversal of 1816713 is 3176181.

It can be written as a sum of positive squares in 2 ways, for example, as 751689 + 1065024 = 867^2 + 1032^2 .

It is not a de Polignac number, because 1816713 - 2¹⁶ = 1751177 is a prime.

It is a super-2 number, since 2×1816713² = 6600892248738, which contains 22 as substring.

1816713 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1816783) 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 11 ways as a sum of consecutive naturals, for example, 168 + ... + 1913.

It is an arithmetic number, because the mean of its divisors is an integer number (221039).

2^1816713 is an apocalyptic number.

It is an amenable number.

1816713 is a deficient number, since it is larger than the sum of its proper divisors (835755).

1816713 is a wasteful number, since it uses less digits than its factorization.

1816713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184 (or 2181 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 1816713 is about 1347.8549625238. The cubic root of 1816713 is about 122.0193689574.

The spelling of 1816713 in words is "one million, eight hundred sixteen thousand, seven hundred thirteen".