6375609 has 12 divisors (see below), whose sum is σ = 9245652. Its totient is φ = 4233600.

The previous prime is 6375571. The next prime is 6375617. The reversal of 6375609 is 9065736.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1447209 + 4928400 = 1203^2 + 2220^2 .

It is not a de Polignac number, because 6375609 - 2⁹ = 6375097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6385609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1269 + ... + 3789.

It is an arithmetic number, because the mean of its divisors is an integer number (770471).

Almost surely, 2^6375609 is an apocalyptic number.

It is an amenable number.

6375609 is a deficient number, since it is larger than the sum of its proper divisors (2870043).

6375609 is a wasteful number, since it uses less digits than its factorization.

6375609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808 (or 2805 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 6375609 is about 2524.9968316812. The cubic root of 6375609 is about 185.4273926772.

The spelling of 6375609 in words is "six million, three hundred seventy-five thousand, six hundred nine".