27670109 has 2 divisors, whose sum is σ = 27670110. Its totient is φ = 27670108.

The previous prime is 27670103. The next prime is 27670141. The reversal of 27670109 is 90107672.

27670109 = 3036² + 3037² + 3038².

It is an a-pointer prime, because the next prime (27670141) can be obtained adding 27670109 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15960025 + 11710084 = 3995^2 + 3422^2 .

It is a cyclic number.

It is not a de Polignac number, because 27670109 - 2⁸ = 27669853 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 (27670103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13835054 + 13835055.

It is an arithmetic number, because the mean of its divisors is an integer number (13835055).

Almost surely, 2^27670109 is an apocalyptic number.

It is an amenable number.

27670109 is a deficient number, since it is larger than the sum of its proper divisors (1).

27670109 is an equidigital number, since it uses as much as digits as its factorization.

27670109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 27670109 is about 5260.2384926921. The cubic root of 27670109 is about 302.4616311784.

The spelling of 27670109 in words is "twenty-seven million, six hundred seventy thousand, one hundred nine".