164884405 has 8 divisors (see below), whose sum is σ = 226127232. Its totient is φ = 113063568.

The previous prime is 164884399. The next prime is 164884417. The reversal of 164884405 is 504488461.

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 164884405 - 2⁵ = 164884373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2355457 + ... + 2355526.

It is an arithmetic number, because the mean of its divisors is an integer number (28265904).

Almost surely, 2^164884405 is an apocalyptic number.

It is an amenable number.

164884405 is a deficient number, since it is larger than the sum of its proper divisors (61242827).

164884405 is an equidigital number, since it uses as much as digits as its factorization.

164884405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4710995.

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 164884405 is about 12840.7322610512. The cubic root of 164884405 is about 548.3525412372.

The spelling of 164884405 in words is "one hundred sixty-four million, eight hundred eighty-four thousand, four hundred five".