27047943 has 18 divisors (see below), whose sum is σ = 42308136. Its totient is φ = 16643952.

The previous prime is 27047939. The next prime is 27047959. The reversal of 27047943 is 34974072.

It is not a de Polignac number, because 27047943 - 2² = 27047939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27047898 and 27047907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27047243) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7371 + ... + 10412.

It is an arithmetic number, because the mean of its divisors is an integer number (2350452).

Almost surely, 2^27047943 is an apocalyptic number.

27047943 is a deficient number, since it is larger than the sum of its proper divisors (15260193).

27047943 is a wasteful number, since it uses less digits than its factorization.

27047943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17815 (or 17799 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 27047943 is about 5200.7636939203. The cubic root of 27047943 is about 300.1774616705.

The spelling of 27047943 in words is "twenty-seven million, forty-seven thousand, nine hundred forty-three".