27630101 has 2 divisors, whose sum is σ = 27630102. Its totient is φ = 27630100.

The previous prime is 27630089. The next prime is 27630121. The reversal of 27630101 is 10103672.

It is a happy number.

It is an a-pointer prime, because the next prime (27630121) can be obtained adding 27630101 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27300625 + 329476 = 5225^2 + 574^2 .

It is a cyclic number.

It is not a de Polignac number, because 27630101 - 2¹⁴ = 27613717 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27630121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13815050 + 13815051.

It is an arithmetic number, because the mean of its divisors is an integer number (13815051).

Almost surely, 2^27630101 is an apocalyptic number.

It is an amenable number.

27630101 is a deficient number, since it is larger than the sum of its proper divisors (1).

27630101 is an equidigital number, since it uses as much as digits as its factorization.

27630101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 27630101 is about 5256.4342476626. The cubic root of 27630101 is about 302.3157852065.

Adding to 27630101 its reverse (10103672), we get a palindrome (37733773).

The spelling of 27630101 in words is "twenty-seven million, six hundred thirty thousand, one hundred one".