3970717 has 4 divisors (see below), whose sum is σ = 3979296. Its totient is φ = 3962140.

The previous prime is 3970711. The next prime is 3970723. The reversal of 3970717 is 7170793.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7170793 = 7 ⋅1024399.

It is an interprime number because it is at equal distance from previous prime (3970711) and next prime (3970723).

It is a cyclic number.

It is not a de Polignac number, because 3970717 - 2¹¹ = 3968669 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 (3970711) 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, 3553 + ... + 4534.

It is an arithmetic number, because the mean of its divisors is an integer number (994824).

Almost surely, 2^3970717 is an apocalyptic number.

It is an amenable number.

3970717 is a deficient number, since it is larger than the sum of its proper divisors (8579).

3970717 is an equidigital number, since it uses as much as digits as its factorization.

3970717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8578.

The product of its (nonzero) digits is 9261, while the sum is 34.

The square root of 3970717 is about 1992.6658023863. The cubic root of 3970717 is about 158.3517905230.

It can be divided in two parts, 39 and 70717, that added together give a square (70756 = 266²).

The spelling of 3970717 in words is "three million, nine hundred seventy thousand, seven hundred seventeen".