3904743 has 4 divisors (see below), whose sum is σ = 5206328. Its totient is φ = 2603160.

The previous prime is 3904741. The next prime is 3904753. The reversal of 3904743 is 3474093.

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

It is not a de Polignac number, because 3904743 - 2¹ = 3904741 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3904743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3904741) 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, 650788 + ... + 650793.

It is an arithmetic number, because the mean of its divisors is an integer number (1301582).

Almost surely, 2^3904743 is an apocalyptic number.

3904743 is a deficient number, since it is larger than the sum of its proper divisors (1301585).

3904743 is a wasteful number, since it uses less digits than its factorization.

3904743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301584.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 3904743 is about 1976.0422566332. The cubic root of 3904743 is about 157.4698758209.

The spelling of 3904743 in words is "three million, nine hundred four thousand, seven hundred forty-three".