350689 has 4 divisors (see below), whose sum is σ = 356500. Its totient is φ = 344880.

The previous prime is 350677. The next prime is 350699. The reversal of 350689 is 986053.

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 8464 + 342225 = 92^2 + 585^2 .

It is a cyclic number.

It is not a de Polignac number, because 350689 - 2⁵ = 350657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 350689.

It is not an unprimeable number, because it can be changed into a prime (350629) 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, 2814 + ... + 2935.

It is an arithmetic number, because the mean of its divisors is an integer number (89125).

2³⁵⁰⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

350689 is a deficient number, since it is larger than the sum of its proper divisors (5811).

350689 is an equidigital number, since it uses as much as digits as its factorization.

350689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5810.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 350689 is about 592.1900032929. The cubic root of 350689 is about 70.5192007122.

The spelling of 350689 in words is "three hundred fifty thousand, six hundred eighty-nine".