164576473 has 4 divisors (see below), whose sum is σ = 174257460. Its totient is φ = 154895488.

The previous prime is 164576471. The next prime is 164576483. The reversal of 164576473 is 374675461.

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 111767184 + 52809289 = 10572^2 + 7267^2 .

It is a cyclic number.

It is not a de Polignac number, because 164576473 - 2¹ = 164576471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164576471) 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, 4840468 + ... + 4840501.

It is an arithmetic number, because the mean of its divisors is an integer number (43564365).

Almost surely, 2^164576473 is an apocalyptic number.

It is an amenable number.

164576473 is a deficient number, since it is larger than the sum of its proper divisors (9680987).

164576473 is an equidigital number, since it uses as much as digits as its factorization.

164576473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9680986.

The product of its digits is 423360, while the sum is 43.

The square root of 164576473 is about 12828.7362199088. The cubic root of 164576473 is about 548.0109675554.

The spelling of 164576473 in words is "one hundred sixty-four million, five hundred seventy-six thousand, four hundred seventy-three".