16709445 has 12 divisors (see below), whose sum is σ = 28963116. Its totient is φ = 8911680.

The previous prime is 16709437. The next prime is 16709447. The reversal of 16709445 is 54490761.

It can be written as a sum of positive squares in 2 ways, for example, as 2556801 + 14152644 = 1599^2 + 3762^2 .

It is not a de Polignac number, because 16709445 - 2³ = 16709437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16709447) 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 11 ways as a sum of consecutive naturals, for example, 185616 + ... + 185705.

It is an arithmetic number, because the mean of its divisors is an integer number (2413593).

Almost surely, 2^16709445 is an apocalyptic number.

16709445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16709445 is a deficient number, since it is larger than the sum of its proper divisors (12253671).

16709445 is a wasteful number, since it uses less digits than its factorization.

16709445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371332 (or 371329 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 16709445 is about 4087.7188014833. The cubic root of 16709445 is about 255.6548336882.

The spelling of 16709445 in words is "sixteen million, seven hundred nine thousand, four hundred forty-five".