164728724 has 24 divisors (see below), whose sum is σ = 292027008. Its totient is φ = 81298080.

The previous prime is 164728721. The next prime is 164728741. The reversal of 164728724 is 427827461.

It is a happy number.

164728724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164728721) 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, 200234 + ... + 201054.

It is an arithmetic number, because the mean of its divisors is an integer number (12167792).

Almost surely, 2^164728724 is an apocalyptic number.

It is an amenable number.

164728724 is a deficient number, since it is larger than the sum of its proper divisors (127298284).

164728724 is a wasteful number, since it uses less digits than its factorization.

164728724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415 (or 1413 counting only the distinct ones).

The product of its digits is 150528, while the sum is 41.

The square root of 164728724 is about 12834.6688309438. The cubic root of 164728724 is about 548.1799052345.

The spelling of 164728724 in words is "one hundred sixty-four million, seven hundred twenty-eight thousand, seven hundred twenty-four".