164704724 has 6 divisors (see below), whose sum is σ = 288233274. Its totient is φ = 82352360.

The previous prime is 164704703. The next prime is 164704747. The reversal of 164704724 is 427407461.

It can be written as a sum of positive squares in only one way, i.e., 102010000 + 62694724 = 10100^2 + 7918^2 .

It is a super-2 number, since 2×164704724² = 54255292215832352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20588087 + ... + 20588094.

It is an arithmetic number, because the mean of its divisors is an integer number (48038879).

Almost surely, 2^164704724 is an apocalyptic number.

It is an amenable number.

164704724 is a deficient number, since it is larger than the sum of its proper divisors (123528550).

164704724 is a wasteful number, since it uses less digits than its factorization.

164704724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41176185 (or 41176183 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 164704724 is about 12833.7338292486. The cubic root of 164704724 is about 548.1532817524.

The spelling of 164704724 in words is "one hundred sixty-four million, seven hundred four thousand, seven hundred twenty-four".