34384789 has 2 divisors, whose sum is σ = 34384790. Its totient is φ = 34384788.

The previous prime is 34384781. The next prime is 34384811. The reversal of 34384789 is 98748343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31024900 + 3359889 = 5570^2 + 1833^2 .

It is a cyclic number.

It is not a de Polignac number, because 34384789 - 2³ = 34384781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34384781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17192394 + 17192395.

It is an arithmetic number, because the mean of its divisors is an integer number (17192395).

Almost surely, 2^34384789 is an apocalyptic number.

It is an amenable number.

34384789 is a deficient number, since it is larger than the sum of its proper divisors (1).

34384789 is an equidigital number, since it uses as much as digits as its factorization.

34384789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 46.

The square root of 34384789 is about 5863.8544490804. The cubic root of 34384789 is about 325.1787230010.

The spelling of 34384789 in words is "thirty-four million, three hundred eighty-four thousand, seven hundred eighty-nine".