172168284 has 12 divisors (see below), whose sum is σ = 401726024. Its totient is φ = 57389424.

The previous prime is 172168279. The next prime is 172168301. The reversal of 172168284 is 482861271.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7173667 + ... + 7173690.

Almost surely, 2^172168284 is an apocalyptic number.

It is an amenable number.

172168284 is an abundant number, since it is smaller than the sum of its proper divisors (229557740).

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

172168284 is a wasteful number, since it uses less digits than its factorization.

172168284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14347364 (or 14347362 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 172168284 is about 13121.2912474345. The cubic root of 172168284 is about 556.3110891288.

The spelling of 172168284 in words is "one hundred seventy-two million, one hundred sixty-eight thousand, two hundred eighty-four".