27403423 has 2 divisors, whose sum is σ = 27403424. Its totient is φ = 27403422.

The previous prime is 27403417. The next prime is 27403429. The reversal of 27403423 is 32430472.

It is a balanced prime because it is at equal distance from previous prime (27403417) and next prime (27403429).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27403423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27403429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13701711 + 13701712.

It is an arithmetic number, because the mean of its divisors is an integer number (13701712).

Almost surely, 2^27403423 is an apocalyptic number.

27403423 is a deficient number, since it is larger than the sum of its proper divisors (1).

27403423 is an equidigital number, since it uses as much as digits as its factorization.

27403423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 27403423 is about 5234.8278863779. The cubic root of 27403423 is about 301.4867787170.

Adding to 27403423 its reverse (32430472), we get a palindrome (59833895).

The spelling of 27403423 in words is "twenty-seven million, four hundred three thousand, four hundred twenty-three".