3970289 has 2 divisors, whose sum is σ = 3970290. Its totient is φ = 3970288.

The previous prime is 3970277. The next prime is 3970313. The reversal of 3970289 is 9820793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3579664 + 390625 = 1892^2 + 625^2 .

It is a cyclic number.

It is not a de Polignac number, because 3970289 - 2⁴ = 3970273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3970189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1985144 + 1985145.

It is an arithmetic number, because the mean of its divisors is an integer number (1985145).

Almost surely, 2^3970289 is an apocalyptic number.

It is an amenable number.

3970289 is a deficient number, since it is larger than the sum of its proper divisors (1).

3970289 is an equidigital number, since it uses as much as digits as its factorization.

3970289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 3970289 is about 1992.5584056685. The cubic root of 3970289 is about 158.3461007864.

The spelling of 3970289 in words is "three million, nine hundred seventy thousand, two hundred eighty-nine".