3971293 has 4 divisors (see below), whose sum is σ = 3981148. Its totient is φ = 3961440.

The previous prime is 3971287. The next prime is 3971299. The reversal of 3971293 is 3921793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3921793 = 241 ⋅16273.

It is an interprime number because it is at equal distance from previous prime (3971287) and next prime (3971299).

It can be written as a sum of positive squares in 2 ways, for example, as 1006009 + 2965284 = 1003^2 + 1722^2 .

It is a cyclic number.

It is not a de Polignac number, because 3971293 - 2⁹ = 3970781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3971299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4296 + ... + 5137.

It is an arithmetic number, because the mean of its divisors is an integer number (995287).

Almost surely, 2^3971293 is an apocalyptic number.

It is an amenable number.

3971293 is a deficient number, since it is larger than the sum of its proper divisors (9855).

3971293 is an equidigital number, since it uses as much as digits as its factorization.

3971293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9854.

The product of its digits is 10206, while the sum is 34.

The square root of 3971293 is about 1992.8103271511. The cubic root of 3971293 is about 158.3594470933.

The spelling of 3971293 in words is "three million, nine hundred seventy-one thousand, two hundred ninety-three".