20797033 has 2 divisors, whose sum is σ = 20797034. Its totient is φ = 20797032.

The previous prime is 20797013. The next prime is 20797057. The reversal of 20797033 is 33079702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19740249 + 1056784 = 4443^2 + 1028^2 .

It is a cyclic number.

It is not a de Polignac number, because 20797033 - 2¹⁷ = 20665961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20796986 and 20797004.

It is not a weakly prime, because it can be changed into another prime (20797013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10398516 + 10398517.

It is an arithmetic number, because the mean of its divisors is an integer number (10398517).

Almost surely, 2^20797033 is an apocalyptic number.

It is an amenable number.

20797033 is a deficient number, since it is larger than the sum of its proper divisors (1).

20797033 is an equidigital number, since it uses as much as digits as its factorization.

20797033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7938, while the sum is 31.

The square root of 20797033 is about 4560.3764099030. The cubic root of 20797033 is about 275.0006964170. Note that the first 3 decimals are identical.

The spelling of 20797033 in words is "twenty million, seven hundred ninety-seven thousand, thirty-three".