20334709 has 2 divisors, whose sum is σ = 20334710. Its totient is φ = 20334708.

The previous prime is 20334707. The next prime is 20334733. The reversal of 20334709 is 90743302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10909809 + 9424900 = 3303^2 + 3070^2 .

It is a cyclic number.

It is not a de Polignac number, because 20334709 - 2¹ = 20334707 is a prime.

It is a super-2 number, since 2×20334709² = 827000780229362, which contains 22 as substring.

Together with 20334707, 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 (20334707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10167354 + 10167355.

It is an arithmetic number, because the mean of its divisors is an integer number (10167355).

Almost surely, 2^20334709 is an apocalyptic number.

It is an amenable number.

20334709 is a deficient number, since it is larger than the sum of its proper divisors (1).

20334709 is an equidigital number, since it uses as much as digits as its factorization.

20334709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 20334709 is about 4509.4022885522. The cubic root of 20334709 is about 272.9476255487.

The spelling of 20334709 in words is "twenty million, three hundred thirty-four thousand, seven hundred nine".