27472943 has 2 divisors, whose sum is σ = 27472944. Its totient is φ = 27472942.

The previous prime is 27472903. The next prime is 27472979. The reversal of 27472943 is 34927472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27472943 - 2¹⁰ = 27471919 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 27472897 and 27472906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27472903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13736471 + 13736472.

It is an arithmetic number, because the mean of its divisors is an integer number (13736472).

Almost surely, 2^27472943 is an apocalyptic number.

27472943 is a deficient number, since it is larger than the sum of its proper divisors (1).

27472943 is an equidigital number, since it uses as much as digits as its factorization.

27472943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 38.

The square root of 27472943 is about 5241.4638222542. The cubic root of 27472943 is about 301.7415116361.

The spelling of 27472943 in words is "twenty-seven million, four hundred seventy-two thousand, nine hundred forty-three".