1016789 has 2 divisors, whose sum is σ = 1016790. Its totient is φ = 1016788.

The previous prime is 1016783. The next prime is 1016839. The reversal of 1016789 is 9876101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 574564 + 442225 = 758^2 + 665^2 .

It is an emirp because it is prime and its reverse (9876101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1016789 - 2⁴ = 1016773 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1016783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508394 + 508395.

It is an arithmetic number, because the mean of its divisors is an integer number (508395).

2^1016789 is an apocalyptic number.

It is an amenable number.

1016789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1016789 is an equidigital number, since it uses as much as digits as its factorization.

1016789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 1016789 is about 1008.3595588876. The cubic root of 1016789 is about 100.5565303275.

The spelling of 1016789 in words is "one million, sixteen thousand, seven hundred eighty-nine".