164392873 has 8 divisors (see below), whose sum is σ = 174444192. Its totient is φ = 154383936.

The previous prime is 164392867. The next prime is 164392889. The reversal of 164392873 is 378293461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164392873 - 2²⁵ = 130838441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164395873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2415 + ... + 18292.

It is an arithmetic number, because the mean of its divisors is an integer number (21805524).

Almost surely, 2^164392873 is an apocalyptic number.

It is an amenable number.

164392873 is a deficient number, since it is larger than the sum of its proper divisors (10051319).

164392873 is a wasteful number, since it uses less digits than its factorization.

164392873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21191.

The product of its digits is 217728, while the sum is 43.

The square root of 164392873 is about 12821.5784129724. The cubic root of 164392873 is about 547.8071063959.

The spelling of 164392873 in words is "one hundred sixty-four million, three hundred ninety-two thousand, eight hundred seventy-three".