1063999 has 2 divisors, whose sum is σ = 1064000. Its totient is φ = 1063998.

The previous prime is 1063987. The next prime is 1064017. The reversal of 1063999 is 9993601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1063999 - 2⁵ = 1063967 is a prime.

It is a super-2 number, since 2×1063999² = 2264187744002, which contains 22 as substring.

It is a Chen prime.

1063999 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1063919) 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, 531999 + 532000.

It is an arithmetic number, because the mean of its divisors is an integer number (532000).

2^1063999 is an apocalyptic number.

1063999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1063999 is an equidigital number, since it uses as much as digits as its factorization.

1063999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 1063999 is about 1031.5032719289. The cubic root of 1063999 is about 102.0893424571.

It can be divided in two parts, 10 and 63999, that added together give a square (64009 = 253²).

The spelling of 1063999 in words is "one million, sixty-three thousand, nine hundred ninety-nine".