352609 has 4 divisors (see below), whose sum is σ = 359316. Its totient is φ = 345904.

The previous prime is 352607. The next prime is 352619. The reversal of 352609 is 906253.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 906253 = 17 ⋅53309.

It can be written as a sum of positive squares in 2 ways, for example, as 107584 + 245025 = 328^2 + 495^2 .

It is a cyclic number.

It is not a de Polignac number, because 352609 - 2¹ = 352607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (352601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3274 + ... + 3379.

It is an arithmetic number, because the mean of its divisors is an integer number (89829).

2³⁵²⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

352609 is a deficient number, since it is larger than the sum of its proper divisors (6707).

352609 is an equidigital number, since it uses as much as digits as its factorization.

352609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6706.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 352609 is about 593.8088918162. The cubic root of 352609 is about 70.6476626047.

It can be divided in two parts, 352 and 609, that added together give a square (961 = 31²).

The spelling of 352609 in words is "three hundred fifty-two thousand, six hundred nine".