16881023 has 2 divisors, whose sum is σ = 16881024. Its totient is φ = 16881022.

The previous prime is 16881013. The next prime is 16881047. The reversal of 16881023 is 32018861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16881023 - 2⁶ = 16880959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16881013) 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, 8440511 + 8440512.

It is an arithmetic number, because the mean of its divisors is an integer number (8440512).

Almost surely, 2^16881023 is an apocalyptic number.

16881023 is a deficient number, since it is larger than the sum of its proper divisors (1).

16881023 is an equidigital number, since it uses as much as digits as its factorization.

16881023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 16881023 is about 4108.6522121007. The cubic root of 16881023 is about 256.5269044757.

Adding to 16881023 its reverse (32018861), we get a palindrome (48899884).

The spelling of 16881023 in words is "sixteen million, eight hundred eighty-one thousand, twenty-three".