172823016 has 64 divisors (see below), whose sum is σ = 452782080. Its totient is φ = 54901440.

The previous prime is 172822999. The next prime is 172823023. The reversal of 172823016 is 610328271.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48115 + ... + 51581.

It is an arithmetic number, because the mean of its divisors is an integer number (7074720).

Almost surely, 2^172823016 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 172823016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226391040).

172823016 is an abundant number, since it is smaller than the sum of its proper divisors (279959064).

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

172823016 is a wasteful number, since it uses less digits than its factorization.

172823016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3574 (or 3570 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 172823016 is about 13146.2167941960. The cubic root of 172823016 is about 557.0153882895.

The spelling of 172823016 in words is "one hundred seventy-two million, eight hundred twenty-three thousand, sixteen".