20337029 has 2 divisors, whose sum is σ = 20337030. Its totient is φ = 20337028.

The previous prime is 20336999. The next prime is 20337043. The reversal of 20337029 is 92073302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18576100 + 1760929 = 4310^2 + 1327^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20337029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20336989 and 20337007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20337059) 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, 10168514 + 10168515.

It is an arithmetic number, because the mean of its divisors is an integer number (10168515).

Almost surely, 2^20337029 is an apocalyptic number.

It is an amenable number.

20337029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20337029 is an equidigital number, since it uses as much as digits as its factorization.

20337029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 20337029 is about 4509.6595215160. The cubic root of 20337029 is about 272.9580054106.

The spelling of 20337029 in words is "twenty million, three hundred thirty-seven thousand, twenty-nine".