164384447 has 8 divisors (see below), whose sum is σ = 175874160. Its totient is φ = 153178560.

The previous prime is 164384417. The next prime is 164384459. The reversal of 164384447 is 744483461.

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 164384447 - 2⁸ = 164384191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164384417) 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, 69758 + ... + 72075.

It is an arithmetic number, because the mean of its divisors is an integer number (21984270).

Almost surely, 2^164384447 is an apocalyptic number.

164384447 is a deficient number, since it is larger than the sum of its proper divisors (11489713).

164384447 is a wasteful number, since it uses less digits than its factorization.

164384447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141913.

The product of its digits is 258048, while the sum is 41.

The square root of 164384447 is about 12821.2498220727. The cubic root of 164384447 is about 547.7977469035.

The spelling of 164384447 in words is "one hundred sixty-four million, three hundred eighty-four thousand, four hundred forty-seven".