164704443 has 16 divisors (see below), whose sum is σ = 224695296. Its totient is φ = 107276000.

The previous prime is 164704439. The next prime is 164704471. The reversal of 164704443 is 344407461.

164704443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 164704443 - 2² = 164704439 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (164703443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37846 + ... + 41972.

It is an arithmetic number, because the mean of its divisors is an integer number (14043456).

Almost surely, 2^164704443 is an apocalyptic number.

164704443 is a deficient number, since it is larger than the sum of its proper divisors (59990853).

164704443 is a wasteful number, since it uses less digits than its factorization.

164704443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4434.

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 164704443 is about 12833.7228815336. The cubic root of 164704443 is about 548.1529700205.

The spelling of 164704443 in words is "one hundred sixty-four million, seven hundred four thousand, four hundred forty-three".