6998287 has 2 divisors, whose sum is σ = 6998288. Its totient is φ = 6998286.

The previous prime is 6998269. The next prime is 6998297. The reversal of 6998287 is 7828996.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6998287 - 2¹¹ = 6996239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6998287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6998267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3499143 + 3499144.

It is an arithmetic number, because the mean of its divisors is an integer number (3499144).

Almost surely, 2^6998287 is an apocalyptic number.

6998287 is a deficient number, since it is larger than the sum of its proper divisors (1).

6998287 is an equidigital number, since it uses as much as digits as its factorization.

6998287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 49.

The square root of 6998287 is about 2645.4275646859. The cubic root of 6998287 is about 191.2775129513.

The spelling of 6998287 in words is "six million, nine hundred ninety-eight thousand, two hundred eighty-seven".