27216697 has 2 divisors, whose sum is σ = 27216698. Its totient is φ = 27216696.

The previous prime is 27216611. The next prime is 27216731. The reversal of 27216697 is 79661272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18800896 + 8415801 = 4336^2 + 2901^2 .

It is a cyclic number.

It is not a de Polignac number, because 27216697 - 2¹⁹ = 26692409 is a prime.

It is not a weakly prime, because it can be changed into another prime (27216097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13608348 + 13608349.

It is an arithmetic number, because the mean of its divisors is an integer number (13608349).

Almost surely, 2^27216697 is an apocalyptic number.

It is an amenable number.

27216697 is a deficient number, since it is larger than the sum of its proper divisors (1).

27216697 is an equidigital number, since it uses as much as digits as its factorization.

27216697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 40.

The square root of 27216697 is about 5216.9624303803. The cubic root of 27216697 is about 300.8004438807.

The spelling of 27216697 in words is "twenty-seven million, two hundred sixteen thousand, six hundred ninety-seven".