34020947 has 2 divisors, whose sum is σ = 34020948. Its totient is φ = 34020946.

The previous prime is 34020937. The next prime is 34020949. The reversal of 34020947 is 74902043.

It is a strong prime.

It is an emirp because it is prime and its reverse (74902043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34020947 - 2⁸ = 34020691 is a prime.

Together with 34020949, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (34020949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17010473 + 17010474.

It is an arithmetic number, because the mean of its divisors is an integer number (17010474).

Almost surely, 2^34020947 is an apocalyptic number.

34020947 is a deficient number, since it is larger than the sum of its proper divisors (1).

34020947 is an equidigital number, since it uses as much as digits as its factorization.

34020947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 34020947 is about 5832.7478087090. The cubic root of 34020947 is about 324.0276960270.

The spelling of 34020947 in words is "thirty-four million, twenty thousand, nine hundred forty-seven".