1427563 has 2 divisors, whose sum is σ = 1427564. Its totient is φ = 1427562.

The previous prime is 1427561. The next prime is 1427567. The reversal of 1427563 is 3657241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1427563 - 2¹ = 1427561 is a prime.

It is a super-2 number, since 2×1427563² = 4075872237938, which contains 22 as substring.

Together with 1427561, it forms a pair of twin primes.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1427561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713781 + 713782.

It is an arithmetic number, because the mean of its divisors is an integer number (713782).

2^1427563 is an apocalyptic number.

1427563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427563 is an equidigital number, since it uses as much as digits as its factorization.

1427563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 28.

The square root of 1427563 is about 1194.8066789234. The cubic root of 1427563 is about 112.5982811937.

The spelling of 1427563 in words is "one million, four hundred twenty-seven thousand, five hundred sixty-three".