13427563 has 2 divisors, whose sum is σ = 13427564. Its totient is φ = 13427562.

The previous prime is 13427549. The next prime is 13427573. The reversal of 13427563 is 36572431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13427563 - 2²¹ = 11330411 is a prime.

It is not a weakly prime, because it can be changed into another prime (13427543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6713781 + 6713782.

It is an arithmetic number, because the mean of its divisors is an integer number (6713782).

Almost surely, 2^13427563 is an apocalyptic number.

13427563 is a deficient number, since it is larger than the sum of its proper divisors (1).

13427563 is an equidigital number, since it uses as much as digits as its factorization.

13427563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 31.

The square root of 13427563 is about 3664.3639284329. The cubic root of 13427563 is about 237.6835176228.

Adding to 13427563 its reverse (36572431), we get a palindrome (49999994).

The spelling of 13427563 in words is "thirteen million, four hundred twenty-seven thousand, five hundred sixty-three".