64172 has 12 divisors (see below), whose sum is σ = 114576. Its totient is φ = 31440.

The previous prime is 64171. The next prime is 64187. The reversal of 64172 is 27146.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64171) 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, 113 + ... + 375.

It is an arithmetic number, because the mean of its divisors is an integer number (9548).

2⁶⁴¹⁷² is an apocalyptic number.

It is an amenable number.

64172 is a deficient number, since it is larger than the sum of its proper divisors (50404).

64172 is a wasteful number, since it uses less digits than its factorization.

64172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 326 counting only the distinct ones).

The product of its digits is 336, while the sum is 20.

The square root of 64172 is about 253.3219295679. The cubic root of 64172 is about 40.0358012805.

Subtracting from 64172 its product of digits (336), we obtain a palindrome (63836).

The spelling of 64172 in words is "sixty-four thousand, one hundred seventy-two".