3964897 has 2 divisors, whose sum is σ = 3964898. Its totient is φ = 3964896.

The previous prime is 3964889. The next prime is 3964903. The reversal of 3964897 is 7984693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3779136 + 185761 = 1944^2 + 431^2 .

It is a cyclic number.

It is not a de Polignac number, because 3964897 - 2³ = 3964889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3964837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1982448 + 1982449.

It is an arithmetic number, because the mean of its divisors is an integer number (1982449).

Almost surely, 2^3964897 is an apocalyptic number.

It is an amenable number.

3964897 is a deficient number, since it is larger than the sum of its proper divisors (1).

3964897 is an equidigital number, since it uses as much as digits as its factorization.

3964897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 3964897 is about 1991.2049116050. The cubic root of 3964897 is about 158.2743856896.

The spelling of 3964897 in words is "three million, nine hundred sixty-four thousand, eight hundred ninety-seven".