3789891 has 24 divisors (see below), whose sum is σ = 6406400. Its totient is φ = 2113776.

The previous prime is 3789889. The next prime is 3789893. The reversal of 3789891 is 1989873.

3789891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3789889) and next prime (3789893).

It is not a de Polignac number, because 3789891 - 2¹ = 3789889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3789893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2010 + ... + 3408.

Almost surely, 2^3789891 is an apocalyptic number.

3789891 is a deficient number, since it is larger than the sum of its proper divisors (2616509).

3789891 is a wasteful number, since it uses less digits than its factorization.

3789891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455 (or 1452 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 3789891 is about 1946.7642384223. The cubic root of 3789891 is about 155.9105749808.

The spelling of 3789891 in words is "three million, seven hundred eighty-nine thousand, eight hundred ninety-one".