6768381 has 4 divisors (see below), whose sum is σ = 9024512. Its totient is φ = 4512252.

The previous prime is 6768367. The next prime is 6768383. The reversal of 6768381 is 1838676.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6768381 - 2⁹ = 6767869 is a prime.

It is a super-2 number, since 2×6768381² = 91621962722322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6768383) 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, 1128061 + ... + 1128066.

It is an arithmetic number, because the mean of its divisors is an integer number (2256128).

Almost surely, 2^6768381 is an apocalyptic number.

It is an amenable number.

6768381 is a deficient number, since it is larger than the sum of its proper divisors (2256131).

6768381 is a wasteful number, since it uses less digits than its factorization.

6768381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256130.

The product of its digits is 48384, while the sum is 39.

The square root of 6768381 is about 2601.6112315256. The cubic root of 6768381 is about 189.1595472576.

The spelling of 6768381 in words is "six million, seven hundred sixty-eight thousand, three hundred eighty-one".