27438029 has 2 divisors, whose sum is σ = 27438030. Its totient is φ = 27438028.

The previous prime is 27438013. The next prime is 27438049. The reversal of 27438029 is 92083472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25020004 + 2418025 = 5002^2 + 1555^2 .

It is a cyclic number.

It is not a de Polignac number, because 27438029 - 2⁴ = 27438013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27438029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27438049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13719014 + 13719015.

It is an arithmetic number, because the mean of its divisors is an integer number (13719015).

Almost surely, 2^27438029 is an apocalyptic number.

It is an amenable number.

27438029 is a deficient number, since it is larger than the sum of its proper divisors (1).

27438029 is an equidigital number, since it uses as much as digits as its factorization.

27438029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 27438029 is about 5238.1322052808. The cubic root of 27438029 is about 301.6136346785.

The spelling of 27438029 in words is "twenty-seven million, four hundred thirty-eight thousand, twenty-nine".