354386789 has 2 divisors, whose sum is σ = 354386790. Its totient is φ = 354386788.

The previous prime is 354386771. The next prime is 354386827. The reversal of 354386789 is 987683453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313644100 + 40742689 = 17710^2 + 6383^2 .

It is an emirp because it is prime and its reverse (987683453) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354386789 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 354386789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354386089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177193394 + 177193395.

It is an arithmetic number, because the mean of its divisors is an integer number (177193395).

Almost surely, 2^354386789 is an apocalyptic number.

It is an amenable number.

354386789 is a deficient number, since it is larger than the sum of its proper divisors (1).

354386789 is an equidigital number, since it uses as much as digits as its factorization.

354386789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 53.

The square root of 354386789 is about 18825.1637177476. The cubic root of 354386789 is about 707.6619441413.

The spelling of 354386789 in words is "three hundred fifty-four million, three hundred eighty-six thousand, seven hundred eighty-nine".