172676560 has 80 divisors (see below), whose sum is σ = 483004800. Its totient is φ = 56083968.

The previous prime is 172676551. The next prime is 172676563. The reversal of 172676560 is 65676271.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172676563) 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 15 ways as a sum of consecutive naturals, for example, 2526 + ... + 18754.

It is an arithmetic number, because the mean of its divisors is an integer number (6037560).

Almost surely, 2^172676560 is an apocalyptic number.

172676560 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 172676560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241502400).

172676560 is an abundant number, since it is smaller than the sum of its proper divisors (310328240).

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

172676560 is a wasteful number, since it uses less digits than its factorization.

172676560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16268 (or 16262 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 172676560 is about 13140.6453418392. The cubic root of 172676560 is about 556.8579993366.

The spelling of 172676560 in words is "one hundred seventy-two million, six hundred seventy-six thousand, five hundred sixty".