1399063 has 2 divisors, whose sum is σ = 1399064. Its totient is φ = 1399062.

The previous prime is 1399039. The next prime is 1399109. The reversal of 1399063 is 3609931.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1399063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1399003) 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, 699531 + 699532.

It is an arithmetic number, because the mean of its divisors is an integer number (699532).

2^1399063 is an apocalyptic number.

1399063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1399063 is an equidigital number, since it uses as much as digits as its factorization.

1399063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 1399063 is about 1182.8199355777. The cubic root of 1399063 is about 111.8439312206.

The spelling of 1399063 in words is "one million, three hundred ninety-nine thousand, sixty-three".