3643743 has 8 divisors (see below), whose sum is σ = 4867888. Its totient is φ = 2424384.

The previous prime is 3643733. The next prime is 3643747. The reversal of 3643743 is 3473463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3643743 - 2¹³ = 3635551 is a prime.

It is a Duffinian number.

3643743 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3643743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3643747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1371 + ... + 3027.

It is an arithmetic number, because the mean of its divisors is an integer number (608486).

Almost surely, 2^3643743 is an apocalyptic number.

3643743 is a deficient number, since it is larger than the sum of its proper divisors (1224145).

3643743 is a wasteful number, since it uses less digits than its factorization.

3643743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393.

The product of its digits is 18144, while the sum is 30.

The square root of 3643743 is about 1908.8590833270. The cubic root of 3643743 is about 153.8801423047.

The spelling of 3643743 in words is "three million, six hundred forty-three thousand, seven hundred forty-three".