27692745 has 32 divisors (see below), whose sum is σ = 47329920. Its totient is φ = 13777920.

The previous prime is 27692737. The next prime is 27692773. The reversal of 27692745 is 54729672.

It is not a de Polignac number, because 27692745 - 2³ = 27692737 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 27692697 and 27692706.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 32991 + ... + 33819.

It is an arithmetic number, because the mean of its divisors is an integer number (1479060).

Almost surely, 2^27692745 is an apocalyptic number.

It is an amenable number.

27692745 is a deficient number, since it is larger than the sum of its proper divisors (19637175).

27692745 is a wasteful number, since it uses less digits than its factorization.

27692745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985.

The product of its digits is 211680, while the sum is 42.

The square root of 27692745 is about 5262.3896663018. The cubic root of 27692745 is about 302.5440866464.

The spelling of 27692745 in words is "twenty-seven million, six hundred ninety-two thousand, seven hundred forty-five".