6444937 has 2 divisors, whose sum is σ = 6444938. Its totient is φ = 6444936.

The previous prime is 6444871. The next prime is 6444941. The reversal of 6444937 is 7394446.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5861241 + 583696 = 2421^2 + 764^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6444937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6444896 and 6444905.

It is not a weakly prime, because it can be changed into another prime (6444967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222468 + 3222469.

It is an arithmetic number, because the mean of its divisors is an integer number (3222469).

Almost surely, 2^6444937 is an apocalyptic number.

It is an amenable number.

6444937 is a deficient number, since it is larger than the sum of its proper divisors (1).

6444937 is an equidigital number, since it uses as much as digits as its factorization.

6444937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 37.

The square root of 6444937 is about 2538.6880470038. The cubic root of 6444937 is about 186.0970800112.

It can be divided in two parts, 6444 and 937, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 6444937 in words is "six million, four hundred forty-four thousand, nine hundred thirty-seven".