6818953 has 2 divisors, whose sum is σ = 6818954. Its totient is φ = 6818952.

The previous prime is 6818947. The next prime is 6818969. The reversal of 6818953 is 3598186.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6718464 + 100489 = 2592^2 + 317^2 .

It is a cyclic number.

It is not a de Polignac number, because 6818953 - 2¹⁷ = 6687881 is a prime.

6818953 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6818993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3409476 + 3409477.

It is an arithmetic number, because the mean of its divisors is an integer number (3409477).

Almost surely, 2^6818953 is an apocalyptic number.

It is an amenable number.

6818953 is a deficient number, since it is larger than the sum of its proper divisors (1).

6818953 is an equidigital number, since it uses as much as digits as its factorization.

6818953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The square root of 6818953 is about 2611.3125052356. The cubic root of 6818953 is about 189.6294995997.

The spelling of 6818953 in words is "six million, eight hundred eighteen thousand, nine hundred fifty-three".