34390943 has 2 divisors, whose sum is σ = 34390944. Its totient is φ = 34390942.

The previous prime is 34390933. The next prime is 34390999. The reversal of 34390943 is 34909343.

34390943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34390943 - 2⁶ = 34390879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34390903) 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, 17195471 + 17195472.

It is an arithmetic number, because the mean of its divisors is an integer number (17195472).

Almost surely, 2^34390943 is an apocalyptic number.

34390943 is a deficient number, since it is larger than the sum of its proper divisors (1).

34390943 is an equidigital number, since it uses as much as digits as its factorization.

34390943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 35.

The square root of 34390943 is about 5864.3791657771. The cubic root of 34390943 is about 325.1981214089.

Subtracting 34390943 from its reverse (34909343), we obtain a square (518400 = 720²).

The spelling of 34390943 in words is "thirty-four million, three hundred ninety thousand, nine hundred forty-three".