27047891 has 8 divisors (see below), whose sum is σ = 29169840. Its totient is φ = 24931872.

The previous prime is 27047863. The next prime is 27047897. The reversal of 27047891 is 19874072.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27047891 - 2¹⁸ = 26785747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27047897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14225 + ... + 16013.

It is an arithmetic number, because the mean of its divisors is an integer number (3646230).

Almost surely, 2^27047891 is an apocalyptic number.

27047891 is a deficient number, since it is larger than the sum of its proper divisors (2121949).

27047891 is a wasteful number, since it uses less digits than its factorization.

27047891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2965.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 27047891 is about 5200.7586946522. The cubic root of 27047891 is about 300.1772693054.

The spelling of 27047891 in words is "twenty-seven million, forty-seven thousand, eight hundred ninety-one".