1427663 has 2 divisors, whose sum is σ = 1427664. Its totient is φ = 1427662.

The previous prime is 1427653. The next prime is 1427681. The reversal of 1427663 is 3667241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1427663 - 2⁶ = 1427599 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1427653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713831 + 713832.

It is an arithmetic number, because the mean of its divisors is an integer number (713832).

2^1427663 is an apocalyptic number.

1427663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427663 is an equidigital number, since it uses as much as digits as its factorization.

1427663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 1427663 is about 1194.8485259647. The cubic root of 1427663 is about 112.6009102814.

The spelling of 1427663 in words is "one million, four hundred twenty-seven thousand, six hundred sixty-three".