3964913 has 2 divisors, whose sum is σ = 3964914. Its totient is φ = 3964912.

The previous prime is 3964907. The next prime is 3964937. The reversal of 3964913 is 3194693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3952144 + 12769 = 1988^2 + 113^2 .

It is a cyclic number.

It is not a de Polignac number, because 3964913 - 2⁴ = 3964897 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3964903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1982456 + 1982457.

It is an arithmetic number, because the mean of its divisors is an integer number (1982457).

Almost surely, 2^3964913 is an apocalyptic number.

It is an amenable number.

3964913 is a deficient number, since it is larger than the sum of its proper divisors (1).

3964913 is an equidigital number, since it uses as much as digits as its factorization.

3964913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 35.

The square root of 3964913 is about 1991.2089292688. The cubic root of 3964913 is about 158.2745985902.

The spelling of 3964913 in words is "three million, nine hundred sixty-four thousand, nine hundred thirteen".