6987243 has 4 divisors (see below), whose sum is σ = 9316328. Its totient is φ = 4658160.

The previous prime is 6987241. The next prime is 6987247. The reversal of 6987243 is 3427896.

6987243 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6987243 - 2¹ = 6987241 is a prime.

It is a d-powerful number, because it can be written as 6⁶ + 9 + 8⁷ + 7⁶ + 2⁵ + 4¹¹ + 3¹² .

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6987241) 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, 1164538 + ... + 1164543.

It is an arithmetic number, because the mean of its divisors is an integer number (2329082).

Almost surely, 2^6987243 is an apocalyptic number.

6987243 is a deficient number, since it is larger than the sum of its proper divisors (2329085).

6987243 is a wasteful number, since it uses less digits than its factorization.

6987243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329084.

The product of its digits is 72576, while the sum is 39.

The square root of 6987243 is about 2643.3393652726. The cubic root of 6987243 is about 191.1768415985.

The spelling of 6987243 in words is "six million, nine hundred eighty-seven thousand, two hundred forty-three".