16886923 has 2 divisors, whose sum is σ = 16886924. Its totient is φ = 16886922.

The previous prime is 16886887. The next prime is 16886929. The reversal of 16886923 is 32968861.

It is a strong prime.

It is an emirp because it is prime and its reverse (32968861) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16886923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16886923.

It is not a weakly prime, because it can be changed into another prime (16886929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8443461 + 8443462.

It is an arithmetic number, because the mean of its divisors is an integer number (8443462).

Almost surely, 2^16886923 is an apocalyptic number.

16886923 is a deficient number, since it is larger than the sum of its proper divisors (1).

16886923 is an equidigital number, since it uses as much as digits as its factorization.

16886923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 16886923 is about 4109.3701463850. The cubic root of 16886923 is about 256.5567867967.

The spelling of 16886923 in words is "sixteen million, eight hundred eighty-six thousand, nine hundred twenty-three".