27434677 has 2 divisors, whose sum is σ = 27434678. Its totient is φ = 27434676.

The previous prime is 27434663. The next prime is 27434681. The reversal of 27434677 is 77643472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24216241 + 3218436 = 4921^2 + 1794^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27434677 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 (27434647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13717338 + 13717339.

It is an arithmetic number, because the mean of its divisors is an integer number (13717339).

Almost surely, 2^27434677 is an apocalyptic number.

It is an amenable number.

27434677 is a deficient number, since it is larger than the sum of its proper divisors (1).

27434677 is an equidigital number, since it uses as much as digits as its factorization.

27434677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 197568, while the sum is 40.

The square root of 27434677 is about 5237.8122341298. The cubic root of 27434677 is about 301.6013518468.

The spelling of 27434677 in words is "twenty-seven million, four hundred thirty-four thousand, six hundred seventy-seven".