27469469 has 2 divisors, whose sum is σ = 27469470. Its totient is φ = 27469468.

The previous prime is 27469447. The next prime is 27469487. The reversal of 27469469 is 96496472.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25381444 + 2088025 = 5038^2 + 1445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27469469 is a prime.

It is a super-2 number, since 2×27469469² = 1509143454283922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27469499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13734734 + 13734735.

It is an arithmetic number, because the mean of its divisors is an integer number (13734735).

Almost surely, 2^27469469 is an apocalyptic number.

It is an amenable number.

27469469 is a deficient number, since it is larger than the sum of its proper divisors (1).

27469469 is an equidigital number, since it uses as much as digits as its factorization.

27469469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 47.

The square root of 27469469 is about 5241.1324158048. The cubic root of 27469469 is about 301.7287925255.

The spelling of 27469469 in words is "twenty-seven million, four hundred sixty-nine thousand, four hundred sixty-nine".