1040663 has 4 divisors (see below), whose sum is σ = 1120728. Its totient is φ = 960600.

The previous prime is 1040659. The next prime is 1040671. The reversal of 1040663 is 3660401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1040663 - 2² = 1040659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40013 + ... + 40038.

It is an arithmetic number, because the mean of its divisors is an integer number (280182).

2^1040663 is an apocalyptic number.

1040663 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1040663 is a deficient number, since it is larger than the sum of its proper divisors (80065).

1040663 is an equidigital number, since it uses as much as digits as its factorization.

1040663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80064.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1040663 is about 1020.1289134222. The cubic root of 1040663 is about 101.3374654459.

The spelling of 1040663 in words is "one million, forty thousand, six hundred sixty-three".