6898989247 has 2 divisors, whose sum is σ = 6898989248. Its totient is φ = 6898989246.

The previous prime is 6898989217. The next prime is 6898989257. The reversal of 6898989247 is 7429898986.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6898989247 - 2¹⁹ = 6898464959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6898989217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3449494623 + 3449494624.

It is an arithmetic number, because the mean of its divisors is an integer number (3449494624).

Almost surely, 2^6898989247 is an apocalyptic number.

6898989247 is a deficient number, since it is larger than the sum of its proper divisors (1).

6898989247 is an equidigital number, since it uses as much as digits as its factorization.

6898989247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 125411328, while the sum is 70.

The square root of 6898989247 is about 83060.1543882504. The cubic root of 6898989247 is about 1903.6852985065.

The spelling of 6898989247 in words is "six billion, eight hundred ninety-eight million, nine hundred eighty-nine thousand, two hundred forty-seven".