27481047 has 32 divisors (see below), whose sum is σ = 41762304. Its totient is φ = 15926400.

The previous prime is 27481043. The next prime is 27481063. The reversal of 27481047 is 74018472.

It is not a de Polignac number, because 27481047 - 2² = 27481043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 27480999 and 27481017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27481043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86533 + ... + 86849.

It is an arithmetic number, because the mean of its divisors is an integer number (1305072).

Almost surely, 2^27481047 is an apocalyptic number.

27481047 is a deficient number, since it is larger than the sum of its proper divisors (14281257).

27481047 is a wasteful number, since it uses less digits than its factorization.

27481047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 27481047 is about 5242.2368317351. The cubic root of 27481047 is about 301.7711780708.

The spelling of 27481047 in words is "twenty-seven million, four hundred eighty-one thousand, forty-seven".