27068621 has 2 divisors, whose sum is σ = 27068622. Its totient is φ = 27068620.

The previous prime is 27068617. The next prime is 27068633. The reversal of 27068621 is 12686072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26522500 + 546121 = 5150^2 + 739^2 .

It is a cyclic number.

It is not a de Polignac number, because 27068621 - 2² = 27068617 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27068021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13534310 + 13534311.

It is an arithmetic number, because the mean of its divisors is an integer number (13534311).

Almost surely, 2^27068621 is an apocalyptic number.

It is an amenable number.

27068621 is a deficient number, since it is larger than the sum of its proper divisors (1).

27068621 is an equidigital number, since it uses as much as digits as its factorization.

27068621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 27068621 is about 5202.7512913842. The cubic root of 27068621 is about 300.2539368448.

The spelling of 27068621 in words is "twenty-seven million, sixty-eight thousand, six hundred twenty-one".