170072 has 16 divisors (see below), whose sum is σ = 364560. Its totient is φ = 72864.

The previous prime is 170063. The next prime is 170081. The reversal of 170072 is 270071.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (170063) and next prime (170081).

It is a self number, because there is not a number n which added to its sum of digits gives 170072.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 170072.

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, 1463 + ... + 1574.

It is an arithmetic number, because the mean of its divisors is an integer number (22785).

2¹⁷⁰⁰⁷² is an apocalyptic number.

It is an amenable number.

170072 is an abundant number, since it is smaller than the sum of its proper divisors (194488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

170072 is a wasteful number, since it uses less digits than its factorization.

170072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3050 (or 3046 counting only the distinct ones).

The product of its (nonzero) digits is 98, while the sum is 17.

The square root of 170072 is about 412.3978661438. The cubic root of 170072 is about 55.4044021577.

Subtracting 170072 from its reverse (270071), we obtain a palindrome (99999).

The spelling of 170072 in words is "one hundred seventy thousand, seventy-two", and thus it is an iban number.