27661274 has 16 divisors (see below), whose sum is σ = 43046856. Its totient is φ = 13320000.

The previous prime is 27661267. The next prime is 27661279. The reversal of 27661274 is 47216672.

It can be written as a sum of positive squares in 4 ways, for example, as 27489049 + 172225 = 5243^2 + 415^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27661279) 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 7 ways as a sum of consecutive naturals, for example, 5624 + ... + 9324.

Almost surely, 2^27661274 is an apocalyptic number.

27661274 is a deficient number, since it is larger than the sum of its proper divisors (15385582).

27661274 is a wasteful number, since it uses less digits than its factorization.

27661274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3841.

The product of its digits is 28224, while the sum is 35.

The square root of 27661274 is about 5259.3986348251. The cubic root of 27661274 is about 302.4294359917.

The spelling of 27661274 in words is "twenty-seven million, six hundred sixty-one thousand, two hundred seventy-four".