27727069 has 2 divisors, whose sum is σ = 27727070. Its totient is φ = 27727068.

The previous prime is 27727057. The next prime is 27727127. The reversal of 27727069 is 96072772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22944100 + 4782969 = 4790^2 + 2187^2 .

It is a cyclic number.

It is not a de Polignac number, because 27727069 - 2⁹ = 27726557 is a prime.

It is a super-2 number, since 2×27727069² = 1537580710661522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27727169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13863534 + 13863535.

It is an arithmetic number, because the mean of its divisors is an integer number (13863535).

Almost surely, 2^27727069 is an apocalyptic number.

It is an amenable number.

27727069 is a deficient number, since it is larger than the sum of its proper divisors (1).

27727069 is an equidigital number, since it uses as much as digits as its factorization.

27727069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 27727069 is about 5265.6499124040. The cubic root of 27727069 is about 302.6690319560.

The spelling of 27727069 in words is "twenty-seven million, seven hundred twenty-seven thousand, sixty-nine".