27947051 has 4 divisors (see below), whose sum is σ = 30487704. Its totient is φ = 25406400.

The previous prime is 27947021. The next prime is 27947053. The reversal of 27947051 is 15074972.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27947051 - 2¹⁰ = 27946027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27947053) 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, 1270310 + ... + 1270331.

It is an arithmetic number, because the mean of its divisors is an integer number (7621926).

Almost surely, 2^27947051 is an apocalyptic number.

27947051 is a deficient number, since it is larger than the sum of its proper divisors (2540653).

27947051 is a wasteful number, since it uses less digits than its factorization.

27947051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540652.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 27947051 is about 5286.4970443574. The cubic root of 27947051 is about 303.4673664665.

The spelling of 27947051 in words is "twenty-seven million, nine hundred forty-seven thousand, fifty-one".