3982491 has 6 divisors (see below), whose sum is σ = 5752500. Its totient is φ = 2654988.

The previous prime is 3982481. The next prime is 3982493. The reversal of 3982491 is 1942893.

It is not a de Polignac number, because 3982491 - 2¹⁵ = 3949723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3982493) 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, 221241 + ... + 221258.

It is an arithmetic number, because the mean of its divisors is an integer number (958750).

Almost surely, 2^3982491 is an apocalyptic number.

3982491 is a deficient number, since it is larger than the sum of its proper divisors (1770009).

3982491 is a wasteful number, since it uses less digits than its factorization.

3982491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442505 (or 442502 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 3982491 is about 1995.6179494082. The cubic root of 3982491 is about 158.5081513851.

The spelling of 3982491 in words is "three million, nine hundred eighty-two thousand, four hundred ninety-one".