3847990 has 16 divisors (see below), whose sum is σ = 6999552. Its totient is φ = 1522944.

The previous prime is 3847939. The next prime is 3848017. The reversal of 3847990 is 997483.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014 + ... + 2953.

It is an arithmetic number, because the mean of its divisors is an integer number (437472).

Almost surely, 2^3847990 is an apocalyptic number.

3847990 is a deficient number, since it is larger than the sum of its proper divisors (3151562).

3847990 is a wasteful number, since it uses less digits than its factorization.

3847990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 3847990 is about 1961.6294247385. The cubic root of 3847990 is about 156.7032407946.

The spelling of 3847990 in words is "three million, eight hundred forty-seven thousand, nine hundred ninety".