170985472 has 48 divisors (see below), whose sum is σ = 390761280. Its totient is φ = 73273344.

The previous prime is 170985431. The next prime is 170985499. The reversal of 170985472 is 274589071.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8373 + ... + 20299.

It is an arithmetic number, because the mean of its divisors is an integer number (8140860).

Almost surely, 2^170985472 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 170985472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195380640).

170985472 is an abundant number, since it is smaller than the sum of its proper divisors (219775808).

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

170985472 is an equidigital number, since it uses as much as digits as its factorization.

170985472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11956 (or 11936 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 170985472 is about 13076.1413268594. The cubic root of 170985472 is about 555.0341910056.

The spelling of 170985472 in words is "one hundred seventy million, nine hundred eighty-five thousand, four hundred seventy-two".