3849881 has 6 divisors (see below), whose sum is σ = 4478490. Its totient is φ = 3299856.

The previous prime is 3849863. The next prime is 3849889. The reversal of 3849881 is 1889483.

It can be written as a sum of positive squares in only one way, i.e., 3841600 + 8281 = 1960^2 + 91^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3849881 is a prime.

It is a super-2 number, since 2×3849881² = 29643167428322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3849889) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39236 + ... + 39333.

It is an arithmetic number, because the mean of its divisors is an integer number (746415).

Almost surely, 2^3849881 is an apocalyptic number.

It is an amenable number.

3849881 is a deficient number, since it is larger than the sum of its proper divisors (628609).

3849881 is an equidigital number, since it uses as much as digits as its factorization.

3849881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78583 (or 78576 counting only the distinct ones).

The product of its digits is 55296, while the sum is 41.

The square root of 3849881 is about 1962.1113627926. Note that the first 3 decimals coincide. The cubic root of 3849881 is about 156.7289059081.

The spelling of 3849881 in words is "three million, eight hundred forty-nine thousand, eight hundred eighty-one".