34020491 has 2 divisors, whose sum is σ = 34020492. Its totient is φ = 34020490.

The previous prime is 34020479. The next prime is 34020551. The reversal of 34020491 is 19402043.

It is a weak prime.

It is an emirp because it is prime and its reverse (19402043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34020491 - 2¹⁰ = 34019467 is a prime.

It is not a weakly prime, because it can be changed into another prime (34020421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17010245 + 17010246.

It is an arithmetic number, because the mean of its divisors is an integer number (17010246).

Almost surely, 2^34020491 is an apocalyptic number.

34020491 is a deficient number, since it is larger than the sum of its proper divisors (1).

34020491 is an equidigital number, since it uses as much as digits as its factorization.

34020491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 34020491 is about 5832.7087189401. The cubic root of 34020491 is about 324.0262483180.

The spelling of 34020491 in words is "thirty-four million, twenty thousand, four hundred ninety-one".