2016923 has 2 divisors, whose sum is σ = 2016924. Its totient is φ = 2016922.

The previous prime is 2016919. The next prime is 2016943. The reversal of 2016923 is 3296102.

Added to its reverse (3296102) it gives a square (5313025 = 2305²).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2016923 - 2² = 2016919 is a prime.

It is not a weakly prime, because it can be changed into another prime (2016943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1008461 + 1008462.

It is an arithmetic number, because the mean of its divisors is an integer number (1008462).

2^2016923 is an apocalyptic number.

2016923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2016923 is an equidigital number, since it uses as much as digits as its factorization.

2016923 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2016923 is about 1420.1841429899. The cubic root of 2016923 is about 126.3464681119.

Adding to 2016923 its reverse (3296102), we get a square (5313025 = 2305²).

The spelling of 2016923 in words is "two million, sixteen thousand, nine hundred twenty-three".