171393900 has 72 divisors (see below), whose sum is σ = 497624400. Its totient is φ = 45546240.

The previous prime is 171393883. The next prime is 171393923. The reversal of 171393900 is 9393171.

171393900 is digitally balanced in base 2, base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

171393900 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103882 + ... + 105518.

It is an arithmetic number, because the mean of its divisors is an integer number (6911450).

Almost surely, 2^171393900 is an apocalyptic number.

171393900 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 171393900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248812200).

171393900 is an abundant number, since it is smaller than the sum of its proper divisors (326230500).

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

171393900 is a wasteful number, since it uses less digits than its factorization.

171393900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003 (or 1996 counting only the distinct ones).

The product of its (nonzero) digits is 5103, while the sum is 33.

The square root of 171393900 is about 13091.7493101571. The cubic root of 171393900 is about 555.4757709129.

The spelling of 171393900 in words is "one hundred seventy-one million, three hundred ninety-three thousand, nine hundred".