27752047 has 2 divisors, whose sum is σ = 27752048. Its totient is φ = 27752046.

The previous prime is 27752029. The next prime is 27752051. The reversal of 27752047 is 74025772.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27752047 is a prime.

It is a super-2 number, since 2×27752047² = 1540352225380418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27752057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13876023 + 13876024.

It is an arithmetic number, because the mean of its divisors is an integer number (13876024).

Almost surely, 2^27752047 is an apocalyptic number.

27752047 is a deficient number, since it is larger than the sum of its proper divisors (1).

27752047 is an equidigital number, since it uses as much as digits as its factorization.

27752047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 27752047 is about 5268.0211654852. The cubic root of 27752047 is about 302.7598913979.

The spelling of 27752047 in words is "twenty-seven million, seven hundred fifty-two thousand, forty-seven".