3847081 has 8 divisors (see below), whose sum is σ = 4499264. Its totient is φ = 3220560.

The previous prime is 3847079. The next prime is 3847093. The reversal of 3847081 is 1807483.

It is a happy number.

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

It is not a de Polignac number, because 3847081 - 2¹ = 3847079 is a prime.

It is a super-2 number, since 2×3847081² = 29600064441122, which contains 22 as substring.

3847081 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3847021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6090 + ... + 6691.

It is an arithmetic number, because the mean of its divisors is an integer number (562408).

Almost surely, 2^3847081 is an apocalyptic number.

It is an amenable number.

3847081 is a deficient number, since it is larger than the sum of its proper divisors (652183).

3847081 is a wasteful number, since it uses less digits than its factorization.

3847081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12831.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 3847081 is about 1961.3977159159. The cubic root of 3847081 is about 156.6909006322.

The spelling of 3847081 in words is "three million, eight hundred forty-seven thousand, eighty-one".