6376813 has 2 divisors, whose sum is σ = 6376814. Its totient is φ = 6376812.

The previous prime is 6376789. The next prime is 6376829. The reversal of 6376813 is 3186736.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5963364 + 413449 = 2442^2 + 643^2 .

It is a cyclic number.

It is not a de Polignac number, because 6376813 - 2¹⁷ = 6245741 is a prime.

It is an Ulam number.

6376813 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6376873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3188406 + 3188407.

It is an arithmetic number, because the mean of its divisors is an integer number (3188407).

Almost surely, 2^6376813 is an apocalyptic number.

It is an amenable number.

6376813 is a deficient number, since it is larger than the sum of its proper divisors (1).

6376813 is an equidigital number, since it uses as much as digits as its factorization.

6376813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 6376813 is about 2525.2352365671. The cubic root of 6376813 is about 185.4390642696.

The spelling of 6376813 in words is "six million, three hundred seventy-six thousand, eight hundred thirteen".