320763903 has 4 divisors (see below), whose sum is σ = 427685208. Its totient is φ = 213842600.

The previous prime is 320763887. The next prime is 320763967. The reversal of 320763903 is 309367023.

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 320763903 - 2⁴ = 320763887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320762903) 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, 53460648 + ... + 53460653.

It is an arithmetic number, because the mean of its divisors is an integer number (106921302).

Almost surely, 2^320763903 is an apocalyptic number.

320763903 is a deficient number, since it is larger than the sum of its proper divisors (106921305).

320763903 is a wasteful number, since it uses less digits than its factorization.

320763903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106921304.

The product of its (nonzero) digits is 20412, while the sum is 33.

The square root of 320763903 is about 17909.8828304375. The cubic root of 320763903 is about 684.5342193799.

The spelling of 320763903 in words is "three hundred twenty million, seven hundred sixty-three thousand, nine hundred three".