34390547 has 2 divisors, whose sum is σ = 34390548. Its totient is φ = 34390546.

The previous prime is 34390523. The next prime is 34390561. The reversal of 34390547 is 74509343.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34390547 is a prime.

It is not a weakly prime, because it can be changed into another prime (34390597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17195273 + 17195274.

It is an arithmetic number, because the mean of its divisors is an integer number (17195274).

Almost surely, 2^34390547 is an apocalyptic number.

34390547 is a deficient number, since it is larger than the sum of its proper divisors (1).

34390547 is an equidigital number, since it uses as much as digits as its factorization.

34390547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 34390547 is about 5864.3454025151. The cubic root of 34390547 is about 325.1968732222.

The spelling of 34390547 in words is "thirty-four million, three hundred ninety thousand, five hundred forty-seven".