990872003 has 8 divisors (see below), whose sum is σ = 1115821056. Its totient is φ = 871734600.

The previous prime is 990871961. The next prime is 990872023. The reversal of 990872003 is 300278099.

990872003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-990872003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (990872023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1452551 + ... + 1453232.

It is an arithmetic number, because the mean of its divisors is an integer number (139477632).

Almost surely, 2^990872003 is an apocalyptic number.

990872003 is a deficient number, since it is larger than the sum of its proper divisors (124949053).

990872003 is a wasteful number, since it uses less digits than its factorization.

990872003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905825.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 990872003 is about 31478.1194323930. The cubic root of 990872003 is about 996.9480292840.

The spelling of 990872003 in words is "nine hundred ninety million, eight hundred seventy-two thousand, three".