16445347 has 8 divisors (see below), whose sum is σ = 16929792. Its totient is φ = 15966600.

The previous prime is 16445339. The next prime is 16445381. The reversal of 16445347 is 74354461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16445347 - 2³ = 16445339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16445327) 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 7 ways as a sum of consecutive naturals, for example, 4822 + ... + 7492.

It is an arithmetic number, because the mean of its divisors is an integer number (2116224).

Almost surely, 2^16445347 is an apocalyptic number.

16445347 is a deficient number, since it is larger than the sum of its proper divisors (484445).

16445347 is a wasteful number, since it uses less digits than its factorization.

16445347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849.

The product of its digits is 40320, while the sum is 34.

The square root of 16445347 is about 4055.2863030864. The cubic root of 16445347 is about 254.3007731356.

The spelling of 16445347 in words is "sixteen million, four hundred forty-five thousand, three hundred forty-seven".