6774161 has 4 divisors (see below), whose sum is σ = 6813492. Its totient is φ = 6734832.

The previous prime is 6774149. The next prime is 6774179. The reversal of 6774161 is 1614776.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5973136 + 801025 = 2444^2 + 895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6774161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6774101) 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, 19406 + ... + 19751.

It is an arithmetic number, because the mean of its divisors is an integer number (1703373).

Almost surely, 2^6774161 is an apocalyptic number.

It is an amenable number.

6774161 is a deficient number, since it is larger than the sum of its proper divisors (39331).

6774161 is a wasteful number, since it uses less digits than its factorization.

6774161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39330.

The product of its digits is 7056, while the sum is 32.

The square root of 6774161 is about 2602.7218445312. The cubic root of 6774161 is about 189.2133775164.

The spelling of 6774161 in words is "six million, seven hundred seventy-four thousand, one hundred sixty-one".