3687743 has 2 divisors, whose sum is σ = 3687744. Its totient is φ = 3687742.

The previous prime is 3687737. The next prime is 3687757. The reversal of 3687743 is 3477863.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3687743 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3687697 and 3687706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3687703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1843871 + 1843872.

It is an arithmetic number, because the mean of its divisors is an integer number (1843872).

Almost surely, 2^3687743 is an apocalyptic number.

3687743 is a deficient number, since it is larger than the sum of its proper divisors (1).

3687743 is an equidigital number, since it uses as much as digits as its factorization.

3687743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 38.

The square root of 3687743 is about 1920.3497077355. The cubic root of 3687743 is about 154.4970586957.

The spelling of 3687743 in words is "three million, six hundred eighty-seven thousand, seven hundred forty-three".