20070433 has 2 divisors, whose sum is σ = 20070434. Its totient is φ = 20070432.

The previous prime is 20070397. The next prime is 20070437. The reversal of 20070433 is 33407002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18045504 + 2024929 = 4248^2 + 1423^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20070433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20070433.

It is not a weakly prime, because it can be changed into another prime (20070437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10035216 + 10035217.

It is an arithmetic number, because the mean of its divisors is an integer number (10035217).

Almost surely, 2^20070433 is an apocalyptic number.

It is an amenable number.

20070433 is a deficient number, since it is larger than the sum of its proper divisors (1).

20070433 is an equidigital number, since it uses as much as digits as its factorization.

20070433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 20070433 is about 4480.0036830342. The cubic root of 20070433 is about 271.7600293023.

Adding to 20070433 its reverse (33407002), we get a palindrome (53477435).

It can be divided in two parts, 20070 and 433, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 20070433 in words is "twenty million, seventy thousand, four hundred thirty-three".