16494943 has 2 divisors, whose sum is σ = 16494944. Its totient is φ = 16494942.

The previous prime is 16494941. The next prime is 16495001. The reversal of 16494943 is 34949461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16494943 - 2¹ = 16494941 is a prime.

Together with 16494941, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 16494896 and 16494905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16494941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8247471 + 8247472.

It is an arithmetic number, because the mean of its divisors is an integer number (8247472).

Almost surely, 2^16494943 is an apocalyptic number.

16494943 is a deficient number, since it is larger than the sum of its proper divisors (1).

16494943 is an equidigital number, since it uses as much as digits as its factorization.

16494943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 40.

The square root of 16494943 is about 4061.3966809461. The cubic root of 16494943 is about 254.5561572997.

The spelling of 16494943 in words is "sixteen million, four hundred ninety-four thousand, nine hundred forty-three".