173728641 has 8 divisors (see below), whose sum is σ = 231715584. Its totient is φ = 115780400.

The previous prime is 173728631. The next prime is 173728651. The reversal of 173728641 is 146827371.

It is an interprime number because it is at equal distance from previous prime (173728631) and next prime (173728651).

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

It is a cyclic number.

It is not a de Polignac number, because 173728641 - 2¹⁴ = 173712257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 173728641.

It is not an unprimeable number, because it can be changed into a prime (173728601) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3280 + ... + 18926.

It is an arithmetic number, because the mean of its divisors is an integer number (28964448).

Almost surely, 2^173728641 is an apocalyptic number.

It is an amenable number.

173728641 is a deficient number, since it is larger than the sum of its proper divisors (57986943).

173728641 is a wasteful number, since it uses less digits than its factorization.

173728641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19351.

The product of its digits is 56448, while the sum is 39.

The square root of 173728641 is about 13180.6161085133. The cubic root of 173728641 is about 557.9866487472.

The spelling of 173728641 in words is "one hundred seventy-three million, seven hundred twenty-eight thousand, six hundred forty-one".