171988896 has 24 divisors (see below), whose sum is σ = 451471104. Its totient is φ = 57329600.

The previous prime is 171988889. The next prime is 171988903. The reversal of 171988896 is 698889171.

It is an interprime number because it is at equal distance from previous prime (171988889) and next prime (171988903).

It is a tau number, because it is divible by the number of its divisors (24).

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, 895680 + ... + 895871.

It is an arithmetic number, because the mean of its divisors is an integer number (18811296).

Almost surely, 2^171988896 is an apocalyptic number.

171988896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

171988896 is an abundant number, since it is smaller than the sum of its proper divisors (279482208).

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

171988896 is a wasteful number, since it uses less digits than its factorization.

171988896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791564 (or 1791556 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 57.

The square root of 171988896 is about 13114.4537057401. The cubic root of 171988896 is about 556.1178088267.

The spelling of 171988896 in words is "one hundred seventy-one million, nine hundred eighty-eight thousand, eight hundred ninety-six".