164684072 has 16 divisors (see below), whose sum is σ = 352894560. Its totient is φ = 70578864.

The previous prime is 164684033. The next prime is 164684081. The reversal of 164684072 is 270486461.

164684072 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 1470338 + ... + 1470449.

It is an arithmetic number, because the mean of its divisors is an integer number (22055910).

Almost surely, 2^164684072 is an apocalyptic number.

It is an amenable number.

164684072 is an abundant number, since it is smaller than the sum of its proper divisors (188210488).

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

164684072 is a wasteful number, since it uses less digits than its factorization.

164684072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2940800 (or 2940796 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 164684072 is about 12832.9292057581. The cubic root of 164684072 is about 548.1303701757.

The spelling of 164684072 in words is "one hundred sixty-four million, six hundred eighty-four thousand, seventy-two".