16938323 has 4 divisors (see below), whose sum is σ = 17257968. Its totient is φ = 16618680.

The previous prime is 16938319. The next prime is 16938331. The reversal of 16938323 is 32383961.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16938323 - 2² = 16938319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16938343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159743 + ... + 159848.

It is an arithmetic number, because the mean of its divisors is an integer number (4314492).

Almost surely, 2^16938323 is an apocalyptic number.

16938323 is a deficient number, since it is larger than the sum of its proper divisors (319645).

16938323 is an equidigital number, since it uses as much as digits as its factorization.

16938323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319644.

The product of its digits is 23328, while the sum is 35.

The square root of 16938323 is about 4115.6193944533. The cubic root of 16938323 is about 256.8168235518.

The spelling of 16938323 in words is "sixteen million, nine hundred thirty-eight thousand, three hundred twenty-three".