27705653 has 2 divisors, whose sum is σ = 27705654. Its totient is φ = 27705652.

The previous prime is 27705641. The next prime is 27705659. The reversal of 27705653 is 35650772.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24671089 + 3034564 = 4967^2 + 1742^2 .

It is a cyclic number.

It is not a de Polignac number, because 27705653 - 2¹⁰ = 27704629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27705659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13852826 + 13852827.

It is an arithmetic number, because the mean of its divisors is an integer number (13852827).

Almost surely, 2^27705653 is an apocalyptic number.

It is an amenable number.

27705653 is a deficient number, since it is larger than the sum of its proper divisors (1).

27705653 is an equidigital number, since it uses as much as digits as its factorization.

27705653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 27705653 is about 5263.6159624349. The cubic root of 27705653 is about 302.5910861098.

The spelling of 27705653 in words is "twenty-seven million, seven hundred five thousand, six hundred fifty-three".