3964937 has 2 divisors, whose sum is σ = 3964938. Its totient is φ = 3964936.

The previous prime is 3964913. The next prime is 3964943. The reversal of 3964937 is 7394693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2298256 + 1666681 = 1516^2 + 1291^2 .

It is an emirp because it is prime and its reverse (7394693) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3964937 - 2¹² = 3960841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3964894 and 3964903.

It is not a weakly prime, because it can be changed into another prime (3964907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1982468 + 1982469.

It is an arithmetic number, because the mean of its divisors is an integer number (1982469).

Almost surely, 2^3964937 is an apocalyptic number.

It is an amenable number.

3964937 is a deficient number, since it is larger than the sum of its proper divisors (1).

3964937 is an equidigital number, since it uses as much as digits as its factorization.

3964937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 41.

The square root of 3964937 is about 1991.2149557494. The cubic root of 3964937 is about 158.2749179400.

The spelling of 3964937 in words is "three million, nine hundred sixty-four thousand, nine hundred thirty-seven".