350909 has 4 divisors (see below), whose sum is σ = 377916. Its totient is φ = 323904.

The previous prime is 350899. The next prime is 350941. The reversal of 350909 is 909053.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31684 + 319225 = 178^2 + 565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-350909 is a prime.

It is a Duffinian number.

350909 is a modest number, since divided by 909 gives 35 as remainder.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 350909.

It is not an unprimeable number, because it can be changed into a prime (350989) 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, 13484 + ... + 13509.

It is an arithmetic number, because the mean of its divisors is an integer number (94479).

2³⁵⁰⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

350909 is a deficient number, since it is larger than the sum of its proper divisors (27007).

350909 is a wasteful number, since it uses less digits than its factorization.

350909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27006.

The product of its (nonzero) digits is 1215, while the sum is 26.

The square root of 350909 is about 592.3757253636. The cubic root of 350909 is about 70.5339440518.

The spelling of 350909 in words is "three hundred fifty thousand, nine hundred nine".