6998261 has 2 divisors, whose sum is σ = 6998262. Its totient is φ = 6998260.

The previous prime is 6998221. The next prime is 6998267. The reversal of 6998261 is 1628996.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6791236 + 207025 = 2606^2 + 455^2 .

It is a cyclic number.

It is not a de Polignac number, because 6998261 - 2⁶ = 6998197 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

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 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, 3499130 + 3499131.

It is an arithmetic number, because the mean of its divisors is an integer number (3499131).

Almost surely, 2^6998261 is an apocalyptic number.

It is an amenable number.

6998261 is a deficient number, since it is larger than the sum of its proper divisors (1).

6998261 is an equidigital number, since it uses as much as digits as its factorization.

6998261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 41.

The square root of 6998261 is about 2645.4226505419. The cubic root of 6998261 is about 191.2772760732.

The spelling of 6998261 in words is "six million, nine hundred ninety-eight thousand, two hundred sixty-one".