6745777 has 8 divisors (see below), whose sum is σ = 7007400. Its totient is φ = 6486144.

The previous prime is 6745763. The next prime is 6745801. The reversal of 6745777 is 7775476.

It can be written as a sum of positive squares in 4 ways, for example, as 3326976 + 3418801 = 1824^2 + 1849^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6745777 - 2¹¹ = 6743729 is a prime.

It is a Duffinian number.

6745777 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6743777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12999 + ... + 13507.

It is an arithmetic number, because the mean of its divisors is an integer number (875925).

Almost surely, 2^6745777 is an apocalyptic number.

It is an amenable number.

6745777 is a deficient number, since it is larger than the sum of its proper divisors (261623).

6745777 is a wasteful number, since it uses less digits than its factorization.

6745777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995.

The product of its digits is 288120, while the sum is 43.

The square root of 6745777 is about 2597.2633674697. The cubic root of 6745777 is about 188.9487370652.

The spelling of 6745777 in words is "six million, seven hundred forty-five thousand, seven hundred seventy-seven".