172704960 has 168 divisors, whose sum is σ = 616311696. Its totient is φ = 46033920.

The previous prime is 172704943. The next prime is 172704967. The reversal of 172704960 is 69407271.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (172704967) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76650 + ... + 78870.

It is an arithmetic number, because the mean of its divisors is an integer number (3668522).

Almost surely, 2^172704960 is an apocalyptic number.

172704960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172704960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308155848).

172704960 is an abundant number, since it is smaller than the sum of its proper divisors (443606736).

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

172704960 is an equidigital number, since it uses as much as digits as its factorization.

172704960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253 (or 2231 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 172704960 is about 13141.7259140495. The cubic root of 172704960 is about 556.8885263524. Note that the first 3 decimals are identical.

The spelling of 172704960 in words is "one hundred seventy-two million, seven hundred four thousand, nine hundred sixty".