350621 has 2 divisors, whose sum is σ = 350622. Its totient is φ = 350620.

The previous prime is 350617. The next prime is 350629. The reversal of 350621 is 126053.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 343396 + 7225 = 586^2 + 85^2 .

It is a cyclic number.

It is not a de Polignac number, because 350621 - 2² = 350617 is a prime.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 350621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (350629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175310 + 175311.

It is an arithmetic number, because the mean of its divisors is an integer number (175311).

2³⁵⁰⁶²¹ is an apocalyptic number.

It is an amenable number.

350621 is a deficient number, since it is larger than the sum of its proper divisors (1).

350621 is an equidigital number, since it uses as much as digits as its factorization.

350621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 350621 is about 592.1325865041. The cubic root of 350621 is about 70.5146424325.

Adding to 350621 its reverse (126053), we get a palindrome (476674).

The spelling of 350621 in words is "three hundred fifty thousand, six hundred twenty-one".