20082803 has 4 divisors (see below), whose sum is σ = 21627648. Its totient is φ = 18537960.

The previous prime is 20082787. The next prime is 20082809. The reversal of 20082803 is 30828002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30828002 = 2 ⋅15414001.

It is a cyclic number.

It is not a de Polignac number, because 20082803 - 2⁴ = 20082787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20082809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772403 + ... + 772428.

It is an arithmetic number, because the mean of its divisors is an integer number (5406912).

Almost surely, 2^20082803 is an apocalyptic number.

20082803 is a deficient number, since it is larger than the sum of its proper divisors (1544845).

20082803 is a wasteful number, since it uses less digits than its factorization.

20082803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544844.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 20082803 is about 4481.3840495990. The cubic root of 20082803 is about 271.8158490773.

The spelling of 20082803 in words is "twenty million, eighty-two thousand, eight hundred three".