20034071 has 2 divisors, whose sum is σ = 20034072. Its totient is φ = 20034070.

The previous prime is 20034061. The next prime is 20034073. The reversal of 20034071 is 17043002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20034071 is a prime.

Together with 20034073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20034073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10017035 + 10017036.

It is an arithmetic number, because the mean of its divisors is an integer number (10017036).

Almost surely, 2^20034071 is an apocalyptic number.

20034071 is a deficient number, since it is larger than the sum of its proper divisors (1).

20034071 is an equidigital number, since it uses as much as digits as its factorization.

20034071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 20034071 is about 4475.9435876695. The cubic root of 20034071 is about 271.5958124192.

Adding to 20034071 its reverse (17043002), we get a palindrome (37077073).

The spelling of 20034071 in words is "twenty million, thirty-four thousand, seventy-one".