20874803 has 4 divisors (see below), whose sum is σ = 20884008. Its totient is φ = 20865600.

The previous prime is 20874779. The next prime is 20874817. The reversal of 20874803 is 30847802.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20874803 - 2¹⁰ = 20873779 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20874803.

It is not an unprimeable number, because it can be changed into a prime (20874853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1475 + ... + 6627.

It is an arithmetic number, because the mean of its divisors is an integer number (5221002).

Almost surely, 2^20874803 is an apocalyptic number.

20874803 is a deficient number, since it is larger than the sum of its proper divisors (9205).

20874803 is an equidigital number, since it uses as much as digits as its factorization.

20874803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9204.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 20874803 is about 4568.8951618526. The cubic root of 20874803 is about 275.3430561649.

The spelling of 20874803 in words is "twenty million, eight hundred seventy-four thousand, eight hundred three".