43172 has 12 divisors (see below), whose sum is σ = 77616. Its totient is φ = 21000.

The previous prime is 43159. The next prime is 43177. The reversal of 43172 is 27134.

It is a happy number.

It is a hoax number, since the sum of its digits (17) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 43172.

It is not an unprimeable number, because it can be changed into a prime (43177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47 + ... + 297.

It is an arithmetic number, because the mean of its divisors is an integer number (6468).

2⁴³¹⁷² is an apocalyptic number.

It is an amenable number.

43172 is a deficient number, since it is larger than the sum of its proper divisors (34444).

43172 is a wasteful number, since it uses less digits than its factorization.

43172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 296 counting only the distinct ones).

The product of its digits is 168, while the sum is 17.

The square root of 43172 is about 207.7787284589. The cubic root of 43172 is about 35.0806304334.

It can be divided in two parts, 43 and 172, that multiplied together give a square (7396 = 86²).

The spelling of 43172 in words is "forty-three thousand, one hundred seventy-two", and thus it is an iban number.