164793728 has 32 divisors (see below), whose sum is σ = 358148520. Its totient is φ = 74905600.

The previous prime is 164793697. The next prime is 164793749. The reversal of 164793728 is 827397461.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57113 + ... + 59928.

Almost surely, 2^164793728 is an apocalyptic number.

It is an amenable number.

164793728 is an abundant number, since it is smaller than the sum of its proper divisors (193354792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164793728 is a wasteful number, since it uses less digits than its factorization.

164793728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117066 (or 117054 counting only the distinct ones).

The product of its digits is 508032, while the sum is 47.

The square root of 164793728 is about 12837.2009410151. The cubic root of 164793728 is about 548.2520019511.

The spelling of 164793728 in words is "one hundred sixty-four million, seven hundred ninety-three thousand, seven hundred twenty-eight".