27807147 has 12 divisors (see below), whose sum is σ = 40225120. Its totient is φ = 18510768.

The previous prime is 27807119. The next prime is 27807149. The reversal of 27807147 is 74170872.

It is not a de Polignac number, because 27807147 - 2⁶ = 27807083 is a prime.

It is a super-3 number, since 3×27807147³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27807149) 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 11 ways as a sum of consecutive naturals, for example, 5598 + ... + 9324.

Almost surely, 2^27807147 is an apocalyptic number.

27807147 is a deficient number, since it is larger than the sum of its proper divisors (12417973).

27807147 is a wasteful number, since it uses less digits than its factorization.

27807147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4562 (or 4559 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 27807147 is about 5273.2482399371. The cubic root of 27807147 is about 302.9601293811.

The spelling of 27807147 in words is "twenty-seven million, eight hundred seven thousand, one hundred forty-seven".