353009 has 4 divisors (see below), whose sum is σ = 354816. Its totient is φ = 351204.

The previous prime is 352991. The next prime is 353011. The reversal of 353009 is 900353.

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, and also an emirpimes, since its reverse is a distinct semiprime: 900353 = 19 ⋅47387.

It is a cyclic number.

It is not a de Polignac number, because 353009 - 2⁸ = 352753 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (353069) 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, 569 + ... + 1014.

It is an arithmetic number, because the mean of its divisors is an integer number (88704).

2³⁵³⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

353009 is a deficient number, since it is larger than the sum of its proper divisors (1807).

353009 is a wasteful number, since it uses less digits than its factorization.

353009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806.

The product of its (nonzero) digits is 405, while the sum is 20.

The square root of 353009 is about 594.1456050498. The cubic root of 353009 is about 70.6743667690.

The spelling of 353009 in words is "three hundred fifty-three thousand, nine".