6443713 has 4 divisors (see below), whose sum is σ = 6665940. Its totient is φ = 6221488.

The previous prime is 6443677. The next prime is 6443719. The reversal of 6443713 is 3173446.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3173446 = 2 ⋅1586723.

It can be written as a sum of positive squares in 2 ways, for example, as 4787344 + 1656369 = 2188^2 + 1287^2 .

It is a cyclic number.

It is not a de Polignac number, because 6443713 - 2¹⁷ = 6312641 is a prime.

6443713 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6443719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111070 + ... + 111127.

It is an arithmetic number, because the mean of its divisors is an integer number (1666485).

Almost surely, 2^6443713 is an apocalyptic number.

It is an amenable number.

6443713 is a deficient number, since it is larger than the sum of its proper divisors (222227).

6443713 is a wasteful number, since it uses less digits than its factorization.

6443713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222226.

The product of its digits is 6048, while the sum is 28.

The square root of 6443713 is about 2538.4469661586. The cubic root of 6443713 is about 186.0852982954.

It can be divided in two parts, 6 and 443713, that multiplied together give a triangular number (2662278 = T₂₃₀₇).

The spelling of 6443713 in words is "six million, four hundred forty-three thousand, seven hundred thirteen".