16473939 has 4 divisors (see below), whose sum is σ = 21965256. Its totient is φ = 10982624.

The previous prime is 16473913. The next prime is 16473959. The reversal of 16473939 is 93937461.

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

It is a cyclic number.

It is not a de Polignac number, because 16473939 - 2⁸ = 16473683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16473939.

It is not an unprimeable number, because it can be changed into a prime (16473959) 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 in 3 ways as a sum of consecutive naturals, for example, 2745654 + ... + 2745659.

It is an arithmetic number, because the mean of its divisors is an integer number (5491314).

Almost surely, 2^16473939 is an apocalyptic number.

16473939 is a deficient number, since it is larger than the sum of its proper divisors (5491317).

16473939 is an equidigital number, since it uses as much as digits as its factorization.

16473939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5491316.

The product of its digits is 122472, while the sum is 42.

The square root of 16473939 is about 4058.8100472922. The cubic root of 16473939 is about 254.4480641999.

The spelling of 16473939 in words is "sixteen million, four hundred seventy-three thousand, nine hundred thirty-nine".