172373064 has 128 divisors (see below), whose sum is σ = 475891200. Its totient is φ = 51814400.

The previous prime is 172373059. The next prime is 172373083. The reversal of 172373064 is 460373271.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1706614 + ... + 1706714.

It is an arithmetic number, because the mean of its divisors is an integer number (3717900).

Almost surely, 2^172373064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172373064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237945600).

172373064 is an abundant number, since it is smaller than the sum of its proper divisors (303518136).

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

172373064 is a wasteful number, since it uses less digits than its factorization.

172373064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 172373064 is about 13129.0922763152. The cubic root of 172373064 is about 556.5315638204.

It can be divided in two parts, 17237 and 3064, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 172373064 in words is "one hundred seventy-two million, three hundred seventy-three thousand, sixty-four".