6998311 has 4 divisors (see below), whose sum is σ = 7082712. Its totient is φ = 6913912.

The previous prime is 6998297. The next prime is 6998353. The reversal of 6998311 is 1138996.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6998311 - 2¹⁷ = 6867239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6998111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42076 + ... + 42241.

It is an arithmetic number, because the mean of its divisors is an integer number (1770678).

Almost surely, 2^6998311 is an apocalyptic number.

6998311 is a deficient number, since it is larger than the sum of its proper divisors (84401).

6998311 is an equidigital number, since it uses as much as digits as its factorization.

6998311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84400.

The product of its digits is 11664, while the sum is 37.

The square root of 6998311 is about 2645.4321008108. The cubic root of 6998311 is about 191.2777316074.

The spelling of 6998311 in words is "six million, nine hundred ninety-eight thousand, three hundred eleven".