6990343 has 4 divisors (see below), whose sum is σ = 7074648. Its totient is φ = 6906040.

The previous prime is 6990341. The next prime is 6990353. The reversal of 6990343 is 3430996.

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 6990343 - 2¹ = 6990341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6990299 and 6990308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6990341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42028 + ... + 42193.

It is an arithmetic number, because the mean of its divisors is an integer number (1768662).

Almost surely, 2^6990343 is an apocalyptic number.

6990343 is a deficient number, since it is larger than the sum of its proper divisors (84305).

6990343 is an equidigital number, since it uses as much as digits as its factorization.

6990343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84304.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 6990343 is about 2643.9256797422. The cubic root of 6990343 is about 191.2051102869.

The spelling of 6990343 in words is "six million, nine hundred ninety thousand, three hundred forty-three".