27947043 has 12 divisors (see below), whose sum is σ = 42492840. Its totient is φ = 17650656.

The previous prime is 27947021. The next prime is 27947053. The reversal of 27947043 is 34074972.

It is not a de Polignac number, because 27947043 - 2²² = 23752739 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 27946989 and 27947007.

It is not an unprimeable number, because it can be changed into a prime (27947053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81546 + ... + 81887.

It is an arithmetic number, because the mean of its divisors is an integer number (3541070).

Almost surely, 2^27947043 is an apocalyptic number.

27947043 is a deficient number, since it is larger than the sum of its proper divisors (14545797).

27947043 is a wasteful number, since it uses less digits than its factorization.

27947043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163458 (or 163455 counting only the distinct ones).

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

The square root of 27947043 is about 5286.4962877127. The cubic root of 27947043 is about 303.4673375100.

The spelling of 27947043 in words is "twenty-seven million, nine hundred forty-seven thousand, forty-three".