354199889 has 2 divisors, whose sum is σ = 354199890. Its totient is φ = 354199888.

The previous prime is 354199871. The next prime is 354199891. The reversal of 354199889 is 988991453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 293094400 + 61105489 = 17120^2 + 7817^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354199889 is a prime.

It is a super-3 number, since 3×354199889³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

Together with 354199891, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (354199189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177099944 + 177099945.

It is an arithmetic number, because the mean of its divisors is an integer number (177099945).

Almost surely, 2^354199889 is an apocalyptic number.

It is an amenable number.

354199889 is a deficient number, since it is larger than the sum of its proper divisors (1).

354199889 is an equidigital number, since it uses as much as digits as its factorization.

354199889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 56.

The square root of 354199889 is about 18820.1989628165. The cubic root of 354199889 is about 707.5375176865.

The spelling of 354199889 in words is "three hundred fifty-four million, one hundred ninety-nine thousand, eight hundred eighty-nine".