172748 has 12 divisors (see below), whose sum is σ = 318360. Its totient is φ = 81792.

The previous prime is 172741. The next prime is 172751. The reversal of 172748 is 847271.

It is a self number, because there is not a number n which added to its sum of digits gives 172748.

It is not an unprimeable number, because it can be changed into a prime (172741) by changing a digit.

172748 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1061 + ... + 1212.

It is an arithmetic number, because the mean of its divisors is an integer number (26530).

2¹⁷²⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

172748 is a deficient number, since it is larger than the sum of its proper divisors (145612).

172748 is a wasteful number, since it uses less digits than its factorization.

172748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296 (or 2294 counting only the distinct ones).

The product of its digits is 3136, while the sum is 29.

The square root of 172748 is about 415.6296428312. The cubic root of 172748 is about 55.6934783452.

The spelling of 172748 in words is "one hundred seventy-two thousand, seven hundred forty-eight".