172384 has 12 divisors (see below), whose sum is σ = 339444. Its totient is φ = 86176.

The previous prime is 172373. The next prime is 172399. The reversal of 172384 is 483271.

172384 = 17² + 18² + ... + 80².

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

172384 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 as a sum of consecutive naturals, namely, 2662 + ... + 2725.

It is an arithmetic number, because the mean of its divisors is an integer number (28287).

2¹⁷²³⁸⁴ is an apocalyptic number.

It is an amenable number.

172384 is a deficient number, since it is larger than the sum of its proper divisors (167060).

172384 is an equidigital number, since it uses as much as digits as its factorization.

172384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5397 (or 5389 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 172384 is about 415.1915220714. The cubic root of 172384 is about 55.6543333062.

It can be divided in two parts, 17 and 2384, that added together give a 4-th power (2401 = 7⁴).

The spelling of 172384 in words is "one hundred seventy-two thousand, three hundred eighty-four".