354443321 has 2 divisors, whose sum is σ = 354443322. Its totient is φ = 354443320.

The previous prime is 354443293. The next prime is 354443381. The reversal of 354443321 is 123344453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188677696 + 165765625 = 13736^2 + 12875^2 .

It is a cyclic number.

It is not a de Polignac number, because 354443321 - 2²² = 350249017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (354443381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177221660 + 177221661.

It is an arithmetic number, because the mean of its divisors is an integer number (177221661).

Almost surely, 2^354443321 is an apocalyptic number.

It is an amenable number.

354443321 is a deficient number, since it is larger than the sum of its proper divisors (1).

354443321 is an equidigital number, since it uses as much as digits as its factorization.

354443321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 29.

The square root of 354443321 is about 18826.6651587582. The cubic root of 354443321 is about 707.6995710311.

Adding to 354443321 its reverse (123344453), we get a palindrome (477787774).

The spelling of 354443321 in words is "three hundred fifty-four million, four hundred forty-three thousand, three hundred twenty-one".