27156429 has 12 divisors (see below), whose sum is σ = 41533596. Its totient is φ = 17039232.

The previous prime is 27156421. The next prime is 27156449. The reversal of 27156429 is 92465172.

27156429 is a `hidden beast` number, since 2 + 7 + 1 + 5 + 642 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8468100 + 18688329 = 2910^2 + 4323^2 .

It is not a de Polignac number, because 27156429 - 2³ = 27156421 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27156393 and 27156402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27156421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88594 + ... + 88899.

It is an arithmetic number, because the mean of its divisors is an integer number (3461133).

Almost surely, 2^27156429 is an apocalyptic number.

It is an amenable number.

27156429 is a deficient number, since it is larger than the sum of its proper divisors (14377167).

27156429 is a wasteful number, since it uses less digits than its factorization.

27156429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177516 (or 177513 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 27156429 is about 5211.1830710502. The cubic root of 27156429 is about 300.5782513684.

The spelling of 27156429 in words is "twenty-seven million, one hundred fifty-six thousand, four hundred twenty-nine".