27613429 has 2 divisors, whose sum is σ = 27613430. Its totient is φ = 27613428.

The previous prime is 27613381. The next prime is 27613451. The reversal of 27613429 is 92431672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26936100 + 677329 = 5190^2 + 823^2 .

It is a cyclic number.

It is not a de Polignac number, because 27613429 - 2¹⁹ = 27089141 is a prime.

It is a super-2 number, since 2×27613429² = 1525002922276082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27613394 and 27613403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27613499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13806714 + 13806715.

It is an arithmetic number, because the mean of its divisors is an integer number (13806715).

Almost surely, 2^27613429 is an apocalyptic number.

It is an amenable number.

27613429 is a deficient number, since it is larger than the sum of its proper divisors (1).

27613429 is an equidigital number, since it uses as much as digits as its factorization.

27613429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 27613429 is about 5254.8481424300. The cubic root of 27613429 is about 302.2549672015.

The spelling of 27613429 in words is "twenty-seven million, six hundred thirteen thousand, four hundred twenty-nine".