1366713 has 20 divisors (see below), whose sum is σ = 2090880. Its totient is φ = 889272.

The previous prime is 1366709. The next prime is 1366721. The reversal of 1366713 is 3176631.

It is not a de Polignac number, because 1366713 - 2² = 1366709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

1366713 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1366753) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3628 + ... + 3986.

It is an arithmetic number, because the mean of its divisors is an integer number (104544).

2^1366713 is an apocalyptic number.

It is an amenable number.

1366713 is a deficient number, since it is larger than the sum of its proper divisors (724167).

1366713 is an equidigital number, since it uses as much as digits as its factorization.

1366713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 409 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 1366713 is about 1169.0650110238. The cubic root of 1366713 is about 110.9751587946.

The spelling of 1366713 in words is "one million, three hundred sixty-six thousand, seven hundred thirteen".