6890259217 has 2 divisors, whose sum is σ = 6890259218. Its totient is φ = 6890259216.

The previous prime is 6890259191. The next prime is 6890259221. The reversal of 6890259217 is 7129520986.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6184878736 + 705380481 = 78644^2 + 26559^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6890259217 is a prime.

It is not a weakly prime, because it can be changed into another prime (6890259317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3445129608 + 3445129609.

It is an arithmetic number, because the mean of its divisors is an integer number (3445129609).

Almost surely, 2^6890259217 is an apocalyptic number.

It is an amenable number.

6890259217 is a deficient number, since it is larger than the sum of its proper divisors (1).

6890259217 is an equidigital number, since it uses as much as digits as its factorization.

6890259217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 6890259217 is about 83007.5852979714. The cubic root of 6890259217 is about 1902.8819806033.

The spelling of 6890259217 in words is "six billion, eight hundred ninety million, two hundred fifty-nine thousand, two hundred seventeen".