27745677 has 12 divisors (see below), whose sum is σ = 40283100. Its totient is φ = 18402048.

The previous prime is 27745639. The next prime is 27745687. The reversal of 27745677 is 77654772.

27745677 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in 2 ways, for example, as 17690436 + 10055241 = 4206^2 + 3171^2 .

It is not a de Polignac number, because 27745677 - 2¹⁰ = 27744653 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27745637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6052 + ... + 9597.

It is an arithmetic number, because the mean of its divisors is an integer number (3356925).

Almost surely, 2^27745677 is an apocalyptic number.

It is an amenable number.

27745677 is a deficient number, since it is larger than the sum of its proper divisors (12537423).

27745677 is a wasteful number, since it uses less digits than its factorization.

27745677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15852 (or 15849 counting only the distinct ones).

The product of its digits is 576240, while the sum is 45.

The square root of 27745677 is about 5267.4165394432. The cubic root of 27745677 is about 302.7367252018.

It can be divided in two parts, 277 and 45677, that added together give a palindrome (45954).

The spelling of 27745677 in words is "twenty-seven million, seven hundred forty-five thousand, six hundred seventy-seven".