3847744 has 28 divisors (see below), whose sum is σ = 7772400. Its totient is φ = 1889408.

The previous prime is 3847721. The next prime is 3847777. The reversal of 3847744 is 4477483.

It is a happy number.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3267 + ... + 4285.

Almost surely, 2^3847744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3847744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3886200).

3847744 is an abundant number, since it is smaller than the sum of its proper divisors (3924656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3847744 is a wasteful number, since it uses less digits than its factorization.

3847744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090 (or 1080 counting only the distinct ones).

The product of its digits is 75264, while the sum is 37.

The square root of 3847744 is about 1961.5667207617. The cubic root of 3847744 is about 156.6999014045.

It can be divided in two parts, 384 and 7744, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 3847744 in words is "three million, eight hundred forty-seven thousand, seven hundred forty-four".