171217488 has 80 divisors (see below), whose sum is σ = 481844160. Its totient is φ = 52073472.

The previous prime is 171217481. The next prime is 171217499. The reversal of 171217488 is 884712171.

171217488 is digitally balanced in base 3, 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 (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171217481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53995 + ... + 57077.

It is an arithmetic number, because the mean of its divisors is an integer number (6023052).

Almost surely, 2^171217488 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 171217488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240922080).

171217488 is an abundant number, since it is smaller than the sum of its proper divisors (310626672).

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

171217488 is a wasteful number, since it uses less digits than its factorization.

171217488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3196 (or 3190 counting only the distinct ones).

The product of its digits is 25088, while the sum is 39.

The square root of 171217488 is about 13085.0100496713. The cubic root of 171217488 is about 555.2851257937.

The spelling of 171217488 in words is "one hundred seventy-one million, two hundred seventeen thousand, four hundred eighty-eight".