1493663 has 2 divisors, whose sum is σ = 1493664. Its totient is φ = 1493662.

The previous prime is 1493659. The next prime is 1493677. The reversal of 1493663 is 3663941.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1493663 - 2² = 1493659 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 (1493623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746831 + 746832.

It is an arithmetic number, because the mean of its divisors is an integer number (746832).

2^1493663 is an apocalyptic number.

1493663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1493663 is an equidigital number, since it uses as much as digits as its factorization.

1493663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 32.

The square root of 1493663 is about 1222.1550638115. The cubic root of 1493663 is about 114.3099955105.

The spelling of 1493663 in words is "one million, four hundred ninety-three thousand, six hundred sixty-three".