170490 has 16 divisors (see below), whose sum is σ = 409248. Its totient is φ = 45456.

The previous prime is 170483. The next prime is 170497. The reversal of 170490 is 94071.

It is an interprime number because it is at equal distance from previous prime (170483) and next prime (170497).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 170490.

It is not an unprimeable number, because it can be changed into a prime (170497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2812 + ... + 2871.

It is an arithmetic number, because the mean of its divisors is an integer number (25578).

2¹⁷⁰⁴⁹⁰ is an apocalyptic number.

170490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

170490 is an abundant number, since it is smaller than the sum of its proper divisors (238758).

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

170490 is a wasteful number, since it uses less digits than its factorization.

170490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5693.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 170490 is about 412.9043472767. The cubic root of 170490 is about 55.4497556799.

The spelling of 170490 in words is "one hundred seventy thousand, four hundred ninety".