6774881 has 8 divisors (see below), whose sum is σ = 6993000. Its totient is φ = 6559360.

The previous prime is 6774871. The next prime is 6774883. The reversal of 6774881 is 1884776.

6774881 = 1840² + 1841².

It can be written as a sum of positive squares in 4 ways, for example, as 1210000 + 5564881 = 1100^2 + 2359^2 .

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 6774881 - 2¹⁰ = 6773857 is a prime.

It is a super-2 number, since 2×6774881² = 91798025128322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6774883) 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, 5555 + ... + 6663.

It is an arithmetic number, because the mean of its divisors is an integer number (874125).

Almost surely, 2^6774881 is an apocalyptic number.

6774881 is the 1841-st centered square number.

It is an amenable number.

6774881 is a deficient number, since it is larger than the sum of its proper divisors (218119).

6774881 is a wasteful number, since it uses less digits than its factorization.

6774881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299.

The product of its digits is 75264, while the sum is 41.

The square root of 6774881 is about 2602.8601575959. The cubic root of 6774881 is about 189.2200808708.

The spelling of 6774881 in words is "six million, seven hundred seventy-four thousand, eight hundred eighty-one".