171172488 has 16 divisors (see below), whose sum is σ = 427931280. Its totient is φ = 57057488.

The previous prime is 171172453. The next prime is 171172493. The reversal of 171172488 is 884271171.

It is a super-2 number, since 2×171172488² = 58600041296220288, which contains 22 as substring.

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, 3566070 + ... + 3566117.

It is an arithmetic number, because the mean of its divisors is an integer number (26745705).

Almost surely, 2^171172488 is an apocalyptic number.

It is an amenable number.

171172488 is an abundant number, since it is smaller than the sum of its proper divisors (256758792).

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

171172488 is a wasteful number, since it uses less digits than its factorization.

171172488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7132196 (or 7132192 counting only the distinct ones).

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

The square root of 171172488 is about 13083.2904118192. The cubic root of 171172488 is about 555.2364741822.

The spelling of 171172488 in words is "one hundred seventy-one million, one hundred seventy-two thousand, four hundred eighty-eight".