6987443 has 4 divisors (see below), whose sum is σ = 7136160. Its totient is φ = 6838728.

The previous prime is 6987433. The next prime is 6987451. The reversal of 6987443 is 3447896.

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 6987443 - 2⁴ = 6987427 is a prime.

It is a d-powerful number, because it can be written as 6⁸ + 9 + 8³ + 7² + 4⁹ + 4⁹ + 3¹⁴ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6987443.

It is not an unprimeable number, because it can be changed into a prime (6987403) 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, 74288 + ... + 74381.

It is an arithmetic number, because the mean of its divisors is an integer number (1784040).

Almost surely, 2^6987443 is an apocalyptic number.

6987443 is a deficient number, since it is larger than the sum of its proper divisors (148717).

6987443 is a wasteful number, since it uses less digits than its factorization.

6987443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148716.

The product of its digits is 145152, while the sum is 41.

The square root of 6987443 is about 2643.3771959370. The cubic root of 6987443 is about 191.1786656372.

The spelling of 6987443 in words is "six million, nine hundred eighty-seven thousand, four hundred forty-three".