286172 has 12 divisors (see below), whose sum is σ = 518280. Its totient is φ = 138096.

The previous prime is 286171. The next prime is 286199. The reversal of 286172 is 271682.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 286172.

It is not an unprimeable number, because it can be changed into a prime (286171) by changing a digit.

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, 1118 + ... + 1349.

It is an arithmetic number, because the mean of its divisors is an integer number (43190).

2²⁸⁶¹⁷² is an apocalyptic number.

It is an amenable number.

286172 is a deficient number, since it is larger than the sum of its proper divisors (232108).

286172 is a wasteful number, since it uses less digits than its factorization.

286172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500 (or 2498 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 286172 is about 534.9504649965. The cubic root of 286172 is about 65.8985278788.

Subtracting from 286172 its sum of digits (26), we obtain a triangular number (286146 = T₇₅₆).

The spelling of 286172 in words is "two hundred eighty-six thousand, one hundred seventy-two".