3997471 has 2 divisors, whose sum is σ = 3997472. Its totient is φ = 3997470.

The previous prime is 3997463. The next prime is 3997493. The reversal of 3997471 is 1747993.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3997471 - 2³ = 3997463 is a prime.

It is a super-3 number, since 3×3997471³ (a number of 21 digits) contains 333 as substring.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3997271) 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 as a sum of consecutive naturals, namely, 1998735 + 1998736.

It is an arithmetic number, because the mean of its divisors is an integer number (1998736).

Almost surely, 2^3997471 is an apocalyptic number.

3997471 is a deficient number, since it is larger than the sum of its proper divisors (1).

3997471 is an equidigital number, since it uses as much as digits as its factorization.

3997471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 40.

The square root of 3997471 is about 1999.3676500334. The cubic root of 3997471 is about 158.7066436666.

The spelling of 3997471 in words is "three million, nine hundred ninety-seven thousand, four hundred seventy-one".