172866960 has 400 divisors, whose sum is σ = 711549696. Its totient is φ = 38071296.

The previous prime is 172866937. The next prime is 172866971. The reversal of 172866960 is 69668271.

172866960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1678269 + ... + 1678371.

Almost surely, 2^172866960 is an apocalyptic number.

172866960 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 172866960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355774848).

172866960 is an abundant number, since it is smaller than the sum of its proper divisors (538682736).

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

172866960 is a wasteful number, since it uses less digits than its factorization.

172866960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 172866960 is about 13147.8880433323. Note that the first 3 decimals coincide. The cubic root of 172866960 is about 557.0625953696.

The spelling of 172866960 in words is "one hundred seventy-two million, eight hundred sixty-six thousand, nine hundred sixty".