3847641 has 16 divisors (see below), whose sum is σ = 5975424. Its totient is φ = 2156544.

The previous prime is 3847639. The next prime is 3847651. The reversal of 3847641 is 1467483.

It is not a de Polignac number, because 3847641 - 2¹ = 3847639 is a prime.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (3847621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 616 + ... + 2841.

It is an arithmetic number, because the mean of its divisors is an integer number (373464).

Almost surely, 2^3847641 is an apocalyptic number.

It is an amenable number.

3847641 is a deficient number, since it is larger than the sum of its proper divisors (2127783).

3847641 is a wasteful number, since it uses less digits than its factorization.

3847641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3520.

The product of its digits is 16128, while the sum is 33.

The square root of 3847641 is about 1961.5404660623. The cubic root of 3847641 is about 156.6985031623.

The spelling of 3847641 in words is "three million, eight hundred forty-seven thousand, six hundred forty-one".