3681743 has 4 divisors (see below), whose sum is σ = 3964968. Its totient is φ = 3398520.

The previous prime is 3681731. The next prime is 3681749. The reversal of 3681743 is 3471863.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3681743 - 2⁸ = 3681487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3681749) 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 3 ways as a sum of consecutive naturals, for example, 141593 + ... + 141618.

It is an arithmetic number, because the mean of its divisors is an integer number (991242).

Almost surely, 2^3681743 is an apocalyptic number.

3681743 is a deficient number, since it is larger than the sum of its proper divisors (283225).

3681743 is a wasteful number, since it uses less digits than its factorization.

3681743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283224.

The product of its digits is 12096, while the sum is 32.

The square root of 3681743 is about 1918.7868563235. The cubic root of 3681743 is about 154.4132237191.

The spelling of 3681743 in words is "three million, six hundred eighty-one thousand, seven hundred forty-three".