920404003 has 4 divisors (see below), whose sum is σ = 922249000. Its totient is φ = 918559008.

The previous prime is 920403977. The next prime is 920404007. The reversal of 920404003 is 300404029.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300404029 = 2129 ⋅141101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-920404003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920404007) 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, 921750 + ... + 922747.

It is an arithmetic number, because the mean of its divisors is an integer number (230562250).

Almost surely, 2^920404003 is an apocalyptic number.

920404003 is a deficient number, since it is larger than the sum of its proper divisors (1844997).

920404003 is a wasteful number, since it uses less digits than its factorization.

920404003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844996.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 920404003 is about 30338.1608374667. The cubic root of 920404003 is about 972.7311708933.

The spelling of 920404003 in words is "nine hundred twenty million, four hundred four thousand, three".