1016863 has 4 divisors (see below), whose sum is σ = 1023120. Its totient is φ = 1010608.

The previous prime is 1016849. The next prime is 1016879. The reversal of 1016863 is 3686101.

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 1016863 - 2¹⁷ = 885791 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 (1016843) 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 in 3 ways as a sum of consecutive naturals, for example, 2878 + ... + 3211.

It is an arithmetic number, because the mean of its divisors is an integer number (255780).

2^1016863 is an apocalyptic number.

1016863 is a deficient number, since it is larger than the sum of its proper divisors (6257).

1016863 is an equidigital number, since it uses as much as digits as its factorization.

1016863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6256.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1016863 is about 1008.3962514805. The cubic root of 1016863 is about 100.5589697070.

The spelling of 1016863 in words is "one million, sixteen thousand, eight hundred sixty-three".