6409373 has 2 divisors, whose sum is σ = 6409374. Its totient is φ = 6409372.

The previous prime is 6409369. The next prime is 6409379. The reversal of 6409373 is 3739046.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4826809 + 1582564 = 2197^2 + 1258^2 .

It is a cyclic number.

It is not a de Polignac number, because 6409373 - 2² = 6409369 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6409379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3204686 + 3204687.

It is an arithmetic number, because the mean of its divisors is an integer number (3204687).

Almost surely, 2^6409373 is an apocalyptic number.

It is an amenable number.

6409373 is a deficient number, since it is larger than the sum of its proper divisors (1).

6409373 is an equidigital number, since it uses as much as digits as its factorization.

6409373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 6409373 is about 2531.6739521510. The cubic root of 6409373 is about 185.7541458257.

The spelling of 6409373 in words is "six million, four hundred nine thousand, three hundred seventy-three".