3867971 has 4 divisors (see below), whose sum is σ = 3878112. Its totient is φ = 3857832.

The previous prime is 3867961. The next prime is 3868003. The reversal of 3867971 is 1797683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1797683 = 401 ⋅4483.

It is a cyclic number.

It is not a de Polignac number, because 3867971 - 2¹⁴ = 3851587 is a prime.

It is a super-2 number, since 2×3867971² = 29922399313682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3867911) 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, 4475 + ... + 5268.

It is an arithmetic number, because the mean of its divisors is an integer number (969528).

Almost surely, 2^3867971 is an apocalyptic number.

3867971 is a deficient number, since it is larger than the sum of its proper divisors (10141).

3867971 is an equidigital number, since it uses as much as digits as its factorization.

3867971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10140.

The product of its digits is 63504, while the sum is 41.

The square root of 3867971 is about 1966.7157903469. The cubic root of 3867971 is about 156.9740041073.

The spelling of 3867971 in words is "three million, eight hundred sixty-seven thousand, nine hundred seventy-one".