164884723 has 4 divisors (see below), whose sum is σ = 172053648. Its totient is φ = 157715800.

The previous prime is 164884721. The next prime is 164884757. The reversal of 164884723 is 327488461.

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

It is a cyclic number.

It is not a de Polignac number, because 164884723 - 2¹ = 164884721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164884723.

It is not an unprimeable number, because it can be changed into a prime (164884721) 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, 3584428 + ... + 3584473.

It is an arithmetic number, because the mean of its divisors is an integer number (43013412).

Almost surely, 2^164884723 is an apocalyptic number.

164884723 is a deficient number, since it is larger than the sum of its proper divisors (7168925).

164884723 is an equidigital number, since it uses as much as digits as its factorization.

164884723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7168924.

The product of its digits is 258048, while the sum is 43.

The square root of 164884723 is about 12840.7446435166. The cubic root of 164884723 is about 548.3528937589.

The spelling of 164884723 in words is "one hundred sixty-four million, eight hundred eighty-four thousand, seven hundred twenty-three".