20869003 has 2 divisors, whose sum is σ = 20869004. Its totient is φ = 20869002.

The previous prime is 20869001. The next prime is 20869091. The reversal of 20869003 is 30096802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20869003 - 2¹ = 20869001 is a prime.

Together with 20869001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20869001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10434501 + 10434502.

It is an arithmetic number, because the mean of its divisors is an integer number (10434502).

Almost surely, 2^20869003 is an apocalyptic number.

20869003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20869003 is an equidigital number, since it uses as much as digits as its factorization.

20869003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 20869003 is about 4568.2603910022. The cubic root of 20869003 is about 275.3175527281.

The spelling of 20869003 in words is "twenty million, eight hundred sixty-nine thousand, three".