170406325 has 6 divisors (see below), whose sum is σ = 211303874. Its totient is φ = 136325040.

The previous prime is 170406323. The next prime is 170406329. The reversal of 170406325 is 523604071.

It can be written as a sum of positive squares in 3 ways, for example, as 2289169 + 168117156 = 1513^2 + 12966^2 .

It is not a de Polignac number, because 170406325 - 2¹ = 170406323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 170406293 and 170406302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170406323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3408102 + ... + 3408151.

Almost surely, 2^170406325 is an apocalyptic number.

It is an amenable number.

170406325 is a deficient number, since it is larger than the sum of its proper divisors (40897549).

170406325 is an equidigital number, since it uses as much as digits as its factorization.

170406325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6816263 (or 6816258 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 170406325 is about 13053.9773632407. The cubic root of 170406325 is about 554.4068277715.

The spelling of 170406325 in words is "one hundred seventy million, four hundred six thousand, three hundred twenty-five".