6768479 has 4 divisors (see below), whose sum is σ = 6785760. Its totient is φ = 6751200.

The previous prime is 6768473. The next prime is 6768481. The reversal of 6768479 is 9748676.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6768479 is a prime.

It is a super-3 number, since 3×6768479³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6768473) 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, 8039 + ... + 8840.

It is an arithmetic number, because the mean of its divisors is an integer number (1696440).

Almost surely, 2^6768479 is an apocalyptic number.

6768479 is a deficient number, since it is larger than the sum of its proper divisors (17281).

6768479 is a wasteful number, since it uses less digits than its factorization.

6768479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17280.

The product of its digits is 508032, while the sum is 47.

The square root of 6768479 is about 2601.6300659394. The cubic root of 6768479 is about 189.1604602059.

The spelling of 6768479 in words is "six million, seven hundred sixty-eight thousand, four hundred seventy-nine".