352009 has 4 divisors (see below), whose sum is σ = 402304. Its totient is φ = 301716.

The previous prime is 352007. The next prime is 352021. The reversal of 352009 is 900253.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 352009 - 2¹ = 352007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (352007) 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, 25137 + ... + 25150.

It is an arithmetic number, because the mean of its divisors is an integer number (100576).

2³⁵²⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

352009 is a deficient number, since it is larger than the sum of its proper divisors (50295).

352009 is an equidigital number, since it uses as much as digits as its factorization.

352009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50294.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 352009 is about 593.3034636676. The cubic root of 352009 is about 70.6075684653.

The spelling of 352009 in words is "three hundred fifty-two thousand, nine".