6773561 has 4 divisors (see below), whose sum is σ = 6779124. Its totient is φ = 6768000.

The previous prime is 6773551. The next prime is 6773567. The reversal of 6773561 is 1653776.

6773561 is nontrivially palindromic in base 11.

6773561 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1849600 + 4923961 = 1360^2 + 2219^2 .

It is a cyclic number.

It is not a de Polignac number, because 6773561 - 2¹⁰ = 6772537 is a prime.

It is a super-2 number, since 2×6773561² = 91762257241442, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6773567) 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, 80 + ... + 3681.

It is an arithmetic number, because the mean of its divisors is an integer number (1694781).

Almost surely, 2^6773561 is an apocalyptic number.

It is an amenable number.

6773561 is a deficient number, since it is larger than the sum of its proper divisors (5563).

6773561 is a wasteful number, since it uses less digits than its factorization.

6773561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5562.

The product of its digits is 26460, while the sum is 35.

The square root of 6773561 is about 2602.6065780290. The cubic root of 6773561 is about 189.2077910250.

The spelling of 6773561 in words is "six million, seven hundred seventy-three thousand, five hundred sixty-one".