3974871 has 4 divisors (see below), whose sum is σ = 5299832. Its totient is φ = 2649912.

The previous prime is 3974849. The next prime is 3974881. The reversal of 3974871 is 1784793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1784793 = 3 ⋅594931.

It is not a de Polignac number, because 3974871 - 2⁹ = 3974359 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3974801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662476 + ... + 662481.

It is an arithmetic number, because the mean of its divisors is an integer number (1324958).

Almost surely, 2^3974871 is an apocalyptic number.

3974871 is a deficient number, since it is larger than the sum of its proper divisors (1324961).

3974871 is a wasteful number, since it uses less digits than its factorization.

3974871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324960.

The product of its digits is 42336, while the sum is 39.

The square root of 3974871 is about 1993.7078522191. The cubic root of 3974871 is about 158.4069916437.

The spelling of 3974871 in words is "three million, nine hundred seventy-four thousand, eight hundred seventy-one".