27841901 has 2 divisors, whose sum is σ = 27841902. Its totient is φ = 27841900.

The previous prime is 27841889. The next prime is 27841921. The reversal of 27841901 is 10914872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26574025 + 1267876 = 5155^2 + 1126^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27841901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27841921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13920950 + 13920951.

It is an arithmetic number, because the mean of its divisors is an integer number (13920951).

Almost surely, 2^27841901 is an apocalyptic number.

It is an amenable number.

27841901 is a deficient number, since it is larger than the sum of its proper divisors (1).

27841901 is an equidigital number, since it uses as much as digits as its factorization.

27841901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 27841901 is about 5276.5425232817. The cubic root of 27841901 is about 303.0862923047.

The spelling of 27841901 in words is "twenty-seven million, eight hundred forty-one thousand, nine hundred one".