6744778 has 8 divisors (see below), whose sum is σ = 10128672. Its totient is φ = 3368556.

The previous prime is 6744769. The next prime is 6744779. The reversal of 6744778 is 8774476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6744779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501 + ... + 3967.

It is an arithmetic number, because the mean of its divisors is an integer number (1266084).

Almost surely, 2^6744778 is an apocalyptic number.

6744778 is a deficient number, since it is larger than the sum of its proper divisors (3383894).

6744778 is a wasteful number, since it uses less digits than its factorization.

6744778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3836.

The product of its digits is 263424, while the sum is 43.

The square root of 6744778 is about 2597.0710425400. The cubic root of 6744778 is about 188.9394092983.

The spelling of 6744778 in words is "six million, seven hundred forty-four thousand, seven hundred seventy-eight".