20432803 has 2 divisors, whose sum is σ = 20432804. Its totient is φ = 20432802.

The previous prime is 20432767. The next prime is 20432851. The reversal of 20432803 is 30823402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20432803 - 2¹⁷ = 20301731 is a prime.

It is not a weakly prime, because it can be changed into another prime (20432873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10216401 + 10216402.

It is an arithmetic number, because the mean of its divisors is an integer number (10216402).

Almost surely, 2^20432803 is an apocalyptic number.

20432803 is a deficient number, since it is larger than the sum of its proper divisors (1).

20432803 is an equidigital number, since it uses as much as digits as its factorization.

20432803 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 22.

The square root of 20432803 is about 4520.2658107682. The cubic root of 20432803 is about 273.3858186276.

The spelling of 20432803 in words is "twenty million, four hundred thirty-two thousand, eight hundred three".