27272047 has 4 divisors (see below), whose sum is σ = 29751336. Its totient is φ = 24792760.

The previous prime is 27271991. The next prime is 27272099. The reversal of 27272047 is 74027272.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27272047 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 (27272347) 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, 1239628 + ... + 1239649.

It is an arithmetic number, because the mean of its divisors is an integer number (7437834).

Almost surely, 2^27272047 is an apocalyptic number.

27272047 is a deficient number, since it is larger than the sum of its proper divisors (2479289).

27272047 is a wasteful number, since it uses less digits than its factorization.

27272047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479288.

The product of its (nonzero) digits is 10976, while the sum is 31.

The square root of 27272047 is about 5222.2645471098. The cubic root of 27272047 is about 301.0042162299.

It can be divided in two parts, 2727 and 2047, that added together give a palindrome (4774).

The spelling of 27272047 in words is "twenty-seven million, two hundred seventy-two thousand, forty-seven".