354222217 has 8 divisors (see below), whose sum is σ = 375328296. Its totient is φ = 333146112.

The previous prime is 354222199. The next prime is 354222227. The reversal of 354222217 is 712222453.

It can be written as a sum of positive squares in 4 ways, for example, as 21123216 + 333099001 = 4596^2 + 18251^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 354222217 - 2¹¹ = 354220169 is a prime.

It is a super-3 number, since 3×354222217³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354222227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19693 + ... + 33109.

It is an arithmetic number, because the mean of its divisors is an integer number (46916037).

Almost surely, 2^354222217 is an apocalyptic number.

It is an amenable number.

354222217 is a deficient number, since it is larger than the sum of its proper divisors (21106079).

354222217 is a wasteful number, since it uses less digits than its factorization.

354222217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14987.

The product of its digits is 6720, while the sum is 28.

The square root of 354222217 is about 18820.7921459220. The cubic root of 354222217 is about 707.5523845891.

The spelling of 354222217 in words is "three hundred fifty-four million, two hundred twenty-two thousand, two hundred seventeen".