6787967 has 4 divisors (see below), whose sum is σ = 7083120. Its totient is φ = 6492816.

The previous prime is 6787961. The next prime is 6788021. The reversal of 6787967 is 7697876.

6787967 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 a cyclic number.

It is not a de Polignac number, because 6787967 - 2⁴ = 6787951 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 (6787961) 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, 147542 + ... + 147587.

It is an arithmetic number, because the mean of its divisors is an integer number (1770780).

Almost surely, 2^6787967 is an apocalyptic number.

6787967 is a deficient number, since it is larger than the sum of its proper divisors (295153).

6787967 is a wasteful number, since it uses less digits than its factorization.

6787967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295152.

The product of its digits is 889056, while the sum is 50.

The square root of 6787967 is about 2605.3727180578. The cubic root of 6787967 is about 189.3418316652.

Subtracting 6787967 from its reverse (7697876), we obtain a palindrome (909909).

The spelling of 6787967 in words is "six million, seven hundred eighty-seven thousand, nine hundred sixty-seven".