20622803 has 2 divisors, whose sum is σ = 20622804. Its totient is φ = 20622802.

The previous prime is 20622793. The next prime is 20622821. The reversal of 20622803 is 30822602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20622803 - 2⁴ = 20622787 is a prime.

It is not a weakly prime, because it can be changed into another prime (20622403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10311401 + 10311402.

It is an arithmetic number, because the mean of its divisors is an integer number (10311402).

Almost surely, 2^20622803 is an apocalyptic number.

20622803 is a deficient number, since it is larger than the sum of its proper divisors (1).

20622803 is an equidigital number, since it uses as much as digits as its factorization.

20622803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 20622803 is about 4541.2336429653. The cubic root of 20622803 is about 274.2305898052.

The spelling of 20622803 in words is "twenty million, six hundred twenty-two thousand, eight hundred three".