27028047 has 4 divisors (see below), whose sum is σ = 36037400. Its totient is φ = 18018696.

The previous prime is 27028003. The next prime is 27028073. The reversal of 27028047 is 74082072.

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

It is not a de Polignac number, because 27028047 - 2¹² = 27023951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27028097) 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, 4504672 + ... + 4504677.

It is an arithmetic number, because the mean of its divisors is an integer number (9009350).

Almost surely, 2^27028047 is an apocalyptic number.

27028047 is a deficient number, since it is larger than the sum of its proper divisors (9009353).

27028047 is an equidigital number, since it uses as much as digits as its factorization.

27028047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9009352.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 27028047 is about 5198.8505460342. The cubic root of 27028047 is about 300.1038418299.

The spelling of 27028047 in words is "twenty-seven million, twenty-eight thousand, forty-seven".