920109903 has 8 divisors (see below), whose sum is σ = 1291382400. Its totient is φ = 581122008.

The previous prime is 920109881. The next prime is 920109907. The reversal of 920109903 is 309901029.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 920109903 - 2⁹ = 920109391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920109907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8071083 + ... + 8071196.

It is an arithmetic number, because the mean of its divisors is an integer number (161422800).

Almost surely, 2^920109903 is an apocalyptic number.

920109903 is a deficient number, since it is larger than the sum of its proper divisors (371272497).

920109903 is a wasteful number, since it uses less digits than its factorization.

920109903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16142301.

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 920109903 is about 30333.3134194074. The cubic root of 920109903 is about 972.6275530934.

The spelling of 920109903 in words is "nine hundred twenty million, one hundred nine thousand, nine hundred three".