6918953 has 2 divisors, whose sum is σ = 6918954. Its totient is φ = 6918952.

The previous prime is 6918943. The next prime is 6918959. The reversal of 6918953 is 3598196.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3988009 + 2930944 = 1997^2 + 1712^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6918953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6918953.

It is not a weakly prime, because it can be changed into another prime (6918959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3459476 + 3459477.

It is an arithmetic number, because the mean of its divisors is an integer number (3459477).

Almost surely, 2^6918953 is an apocalyptic number.

It is an amenable number.

6918953 is a deficient number, since it is larger than the sum of its proper divisors (1).

6918953 is an equidigital number, since it uses as much as digits as its factorization.

6918953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 41.

The square root of 6918953 is about 2630.3902752253. The cubic root of 6918953 is about 190.5519775133.

The spelling of 6918953 in words is "six million, nine hundred eighteen thousand, nine hundred fifty-three".