350023621 has 2 divisors, whose sum is σ = 350023622. Its totient is φ = 350023620.

The previous prime is 350023559. The next prime is 350023631. The reversal of 350023621 is 126320053.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211702500 + 138321121 = 14550^2 + 11761^2 .

It is an emirp because it is prime and its reverse (126320053) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 350023621 - 2¹⁷ = 349892549 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 350023592 and 350023601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (350023631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175011810 + 175011811.

It is an arithmetic number, because the mean of its divisors is an integer number (175011811).

Almost surely, 2^350023621 is an apocalyptic number.

It is an amenable number.

350023621 is a deficient number, since it is larger than the sum of its proper divisors (1).

350023621 is an equidigital number, since it uses as much as digits as its factorization.

350023621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 350023621 is about 18708.9182209982. The cubic root of 350023621 is about 704.7457265873.

Adding to 350023621 its reverse (126320053), we get a palindrome (476343674).

The spelling of 350023621 in words is "three hundred fifty million, twenty-three thousand, six hundred twenty-one".