3997371 has 24 divisors (see below), whose sum is σ = 6303744. Its totient is φ = 2246160.

The previous prime is 3997361. The next prime is 3997381. The reversal of 3997371 is 1737993.

It is an interprime number because it is at equal distance from previous prime (3997361) and next prime (3997381).

It is not a de Polignac number, because 3997371 - 2⁵ = 3997339 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

3997371 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3997361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10246 + ... + 10628.

It is an arithmetic number, because the mean of its divisors is an integer number (262656).

Almost surely, 2^3997371 is an apocalyptic number.

3997371 is a deficient number, since it is larger than the sum of its proper divisors (2306373).

3997371 is a wasteful number, since it uses less digits than its factorization.

3997371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 464 counting only the distinct ones).

The product of its digits is 35721, while the sum is 39.

The square root of 3997371 is about 1999.3426419701. The cubic root of 3997371 is about 158.7053202635.

The spelling of 3997371 in words is "three million, nine hundred ninety-seven thousand, three hundred seventy-one".