1043663 has 2 divisors, whose sum is σ = 1043664. Its totient is φ = 1043662.

The previous prime is 1043657. The next prime is 1043683. The reversal of 1043663 is 3663401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1043663 - 2⁶ = 1043599 is a prime.

It is equal to p₈₁₆₇₁ and since 1043663 and 81671 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1043683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521831 + 521832.

It is an arithmetic number, because the mean of its divisors is an integer number (521832).

2^1043663 is an apocalyptic number.

1043663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043663 is an equidigital number, since it uses as much as digits as its factorization.

1043663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 1043663 is about 1021.5982576336. The cubic root of 1043663 is about 101.4347498149.

The spelling of 1043663 in words is "one million, forty-three thousand, six hundred sixty-three".