172497 has 8 divisors (see below), whose sum is σ = 247744. Its totient is φ = 106128.

The previous prime is 172489. The next prime is 172507. The reversal of 172497 is 794271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 172497 - 2³ = 172489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2173 + ... + 2250.

It is an arithmetic number, because the mean of its divisors is an integer number (30968).

2¹⁷²⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

172497 is a deficient number, since it is larger than the sum of its proper divisors (75247).

172497 is a wasteful number, since it uses less digits than its factorization.

172497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4439.

The product of its digits is 3528, while the sum is 30.

The square root of 172497 is about 415.3275815546. The cubic root of 172497 is about 55.6664913680. Note that the first 3 decimals are identical.

The spelling of 172497 in words is "one hundred seventy-two thousand, four hundred ninety-seven".