3970949 has 2 divisors, whose sum is σ = 3970950. Its totient is φ = 3970948.

The previous prime is 3970903. The next prime is 3970991. The reversal of 3970949 is 9490793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3541924 + 429025 = 1882^2 + 655^2 .

It is a cyclic number.

It is not a de Polignac number, because 3970949 - 2¹⁶ = 3905413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3970049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1985474 + 1985475.

It is an arithmetic number, because the mean of its divisors is an integer number (1985475).

Almost surely, 2^3970949 is an apocalyptic number.

It is an amenable number.

3970949 is a deficient number, since it is larger than the sum of its proper divisors (1).

3970949 is an equidigital number, since it uses as much as digits as its factorization.

3970949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 3970949 is about 1992.7240150106. The cubic root of 3970949 is about 158.3548745084.

The spelling of 3970949 in words is "three million, nine hundred seventy thousand, nine hundred forty-nine".