427172 has 12 divisors (see below), whose sum is σ = 752220. Its totient is φ = 212256.

The previous prime is 427169. The next prime is 427181. The reversal of 427172 is 271724.

Added to its reverse (271724) it gives a square (698896 = 836²).

It can be written as a sum of positive squares in 2 ways, for example, as 139876 + 287296 = 374^2 + 536^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878 + ... + 1274.

It is an arithmetic number, because the mean of its divisors is an integer number (62685).

2⁴²⁷¹⁷² is an apocalyptic number.

It is an amenable number.

427172 is a deficient number, since it is larger than the sum of its proper divisors (325048).

427172 is a wasteful number, since it uses less digits than its factorization.

427172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 668 counting only the distinct ones).

The product of its digits is 784, while the sum is 23.

The square root of 427172 is about 653.5839655316. The cubic root of 427172 is about 75.3125916392.

Adding to 427172 its reverse (271724), we get a palindrome (698896).

The spelling of 427172 in words is "four hundred twenty-seven thousand, one hundred seventy-two", and thus it is an iban number.