20046903 has 4 divisors (see below), whose sum is σ = 26729208. Its totient is φ = 13364600.

The previous prime is 20046841. The next prime is 20046913. The reversal of 20046903 is 30964002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20046903 - 2⁶ = 20046839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20046913) 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, 3341148 + ... + 3341153.

It is an arithmetic number, because the mean of its divisors is an integer number (6682302).

Almost surely, 2^20046903 is an apocalyptic number.

20046903 is a deficient number, since it is larger than the sum of its proper divisors (6682305).

20046903 is an equidigital number, since it uses as much as digits as its factorization.

20046903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6682304.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 20046903 is about 4477.3767989750. The cubic root of 20046903 is about 271.6537865515.

The spelling of 20046903 in words is "twenty million, forty-six thousand, nine hundred three".