6943887 has 20 divisors (see below), whose sum is σ = 10556040. Its totient is φ = 4547664.

The previous prime is 6943879. The next prime is 6943889. The reversal of 6943887 is 7883496.

It is a happy number.

It is not a de Polignac number, because 6943887 - 2³ = 6943879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6943889) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4053 + ... + 5505.

It is an arithmetic number, because the mean of its divisors is an integer number (527802).

Almost surely, 2^6943887 is an apocalyptic number.

6943887 is a deficient number, since it is larger than the sum of its proper divisors (3612153).

6943887 is a wasteful number, since it uses less digits than its factorization.

6943887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524 (or 1515 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 6943887 is about 2635.1256137042. The cubic root of 6943887 is about 190.7806020389.

It can be divided in two parts, 69 and 43887, that multiplied together give a palindrome (3028203).

The spelling of 6943887 in words is "six million, nine hundred forty-three thousand, eight hundred eighty-seven".