16331923 has 2 divisors, whose sum is σ = 16331924. Its totient is φ = 16331922.

The previous prime is 16331921. The next prime is 16331929. The reversal of 16331923 is 32913361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16331923 - 2¹ = 16331921 is a prime.

Together with 16331921, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 16331891 and 16331900.

It is not a weakly prime, because it can be changed into another prime (16331921) 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, 8165961 + 8165962.

It is an arithmetic number, because the mean of its divisors is an integer number (8165962).

Almost surely, 2^16331923 is an apocalyptic number.

16331923 is a deficient number, since it is larger than the sum of its proper divisors (1).

16331923 is an equidigital number, since it uses as much as digits as its factorization.

16331923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 28.

The square root of 16331923 is about 4041.2773970615. The cubic root of 16331923 is about 253.7147841153.

The spelling of 16331923 in words is "sixteen million, three hundred thirty-one thousand, nine hundred twenty-three".