1016663 has 2 divisors, whose sum is σ = 1016664. Its totient is φ = 1016662.

The previous prime is 1016641. The next prime is 1016681. The reversal of 1016663 is 3666101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1016663 - 2⁶ = 1016599 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1016263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508331 + 508332.

It is an arithmetic number, because the mean of its divisors is an integer number (508332).

2^1016663 is an apocalyptic number.

1016663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1016663 is an equidigital number, since it uses as much as digits as its factorization.

1016663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1016663 is about 1008.2970792381. The cubic root of 1016663 is about 100.5523765171.

The spelling of 1016663 in words is "one million, sixteen thousand, six hundred sixty-three".