1016909 has 2 divisors, whose sum is σ = 1016910. Its totient is φ = 1016908.

The previous prime is 1016891. The next prime is 1016921. The reversal of 1016909 is 9096101.

1016909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 644809 + 372100 = 803^2 + 610^2 .

It is a cyclic number.

It is not a de Polignac number, because 1016909 - 2¹⁶ = 951373 is a prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1016929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508454 + 508455.

It is an arithmetic number, because the mean of its divisors is an integer number (508455).

2^1016909 is an apocalyptic number.

It is an amenable number.

1016909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1016909 is an equidigital number, since it uses as much as digits as its factorization.

1016909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 1016909 is about 1008.4190597167. The cubic root of 1016909 is about 100.5604860184.

The spelling of 1016909 in words is "one million, sixteen thousand, nine hundred nine".