6375949 has 2 divisors, whose sum is σ = 6375950. Its totient is φ = 6375948.

The previous prime is 6375947. The next prime is 6375959. The reversal of 6375949 is 9495736.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6375625 + 324 = 2525^2 + 18^2 .

It is a cyclic number.

It is not a de Polignac number, because 6375949 - 2¹ = 6375947 is a prime.

Together with 6375947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6375947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3187974 + 3187975.

It is an arithmetic number, because the mean of its divisors is an integer number (3187975).

Almost surely, 2^6375949 is an apocalyptic number.

It is an amenable number.

6375949 is a deficient number, since it is larger than the sum of its proper divisors (1).

6375949 is an equidigital number, since it uses as much as digits as its factorization.

6375949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 43.

The square root of 6375949 is about 2525.0641576008. The cubic root of 6375949 is about 185.4306887907.

The spelling of 6375949 in words is "six million, three hundred seventy-five thousand, nine hundred forty-nine".