27490429 has 2 divisors, whose sum is σ = 27490430. Its totient is φ = 27490428.

The previous prime is 27490427. The next prime is 27490433. The reversal of 27490429 is 92409472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22781529 + 4708900 = 4773^2 + 2170^2 .

It is a cyclic number.

It is not a de Polignac number, because 27490429 - 2¹ = 27490427 is a prime.

Together with 27490427, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27490427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13745214 + 13745215.

It is an arithmetic number, because the mean of its divisors is an integer number (13745215).

Almost surely, 2^27490429 is an apocalyptic number.

It is an amenable number.

27490429 is a deficient number, since it is larger than the sum of its proper divisors (1).

27490429 is an equidigital number, since it uses as much as digits as its factorization.

27490429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 27490429 is about 5243.1316023918. The cubic root of 27490429 is about 301.8055156157.

The spelling of 27490429 in words is "twenty-seven million, four hundred ninety thousand, four hundred twenty-nine".