16675705 has 4 divisors (see below), whose sum is σ = 20010852. Its totient is φ = 13340560.

The previous prime is 16675679. The next prime is 16675709. The reversal of 16675705 is 50757661.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3250809 + 13424896 = 1803^2 + 3664^2 .

It is a de Polignac number, because none of the positive numbers 2^k-16675705 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16675709) 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, 1667566 + ... + 1667575.

It is an arithmetic number, because the mean of its divisors is an integer number (5002713).

Almost surely, 2^16675705 is an apocalyptic number.

It is an amenable number.

16675705 is a deficient number, since it is larger than the sum of its proper divisors (3335147).

16675705 is an equidigital number, since it uses as much as digits as its factorization.

16675705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335146.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 16675705 is about 4083.5897198421. The cubic root of 16675705 is about 255.4826435208.

The spelling of 16675705 in words is "sixteen million, six hundred seventy-five thousand, seven hundred five".