3688743 has 4 divisors (see below), whose sum is σ = 4918328. Its totient is φ = 2459160.

The previous prime is 3688709. The next prime is 3688757. The reversal of 3688743 is 3478863.

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

It is not a de Polignac number, because 3688743 - 2¹² = 3684647 is a prime.

It is a D-number.

It is a Duffinian number.

3688743 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3688703) 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, 614788 + ... + 614793.

It is an arithmetic number, because the mean of its divisors is an integer number (1229582).

Almost surely, 2^3688743 is an apocalyptic number.

3688743 is a deficient number, since it is larger than the sum of its proper divisors (1229585).

3688743 is a wasteful number, since it uses less digits than its factorization.

3688743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229584.

The product of its digits is 96768, while the sum is 39.

The square root of 3688743 is about 1920.6100593301. The cubic root of 3688743 is about 154.5110223491.

The spelling of 3688743 in words is "three million, six hundred eighty-eight thousand, seven hundred forty-three".