3982791 has 16 divisors (see below), whose sum is σ = 5565024. Its totient is φ = 2530944.

The previous prime is 3982763. The next prime is 3982801. The reversal of 3982791 is 1972893.

It is not a de Polignac number, because 3982791 - 2¹⁰ = 3981767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3982721) 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 15 ways as a sum of consecutive naturals, for example, 5545 + ... + 6221.

It is an arithmetic number, because the mean of its divisors is an integer number (347814).

Almost surely, 2^3982791 is an apocalyptic number.

3982791 is a deficient number, since it is larger than the sum of its proper divisors (1582233).

3982791 is a wasteful number, since it uses less digits than its factorization.

3982791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770.

The product of its digits is 27216, while the sum is 39.

The square root of 3982791 is about 1995.6931126804. The cubic root of 3982791 is about 158.5121314110.

The spelling of 3982791 in words is "three million, nine hundred eighty-two thousand, seven hundred ninety-one".