990467289 has 48 divisors (see below), whose sum is σ = 1686457344. Its totient is φ = 548402400.

The previous prime is 990467263. The next prime is 990467293. The reversal of 990467289 is 982764099.

990467289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 990467289 - 2¹⁹ = 989943001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (990467249) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 353484 + ... + 356274.

It is an arithmetic number, because the mean of its divisors is an integer number (35134528).

Almost surely, 2^990467289 is an apocalyptic number.

It is an amenable number.

990467289 is a deficient number, since it is larger than the sum of its proper divisors (695990055).

990467289 is a wasteful number, since it uses less digits than its factorization.

990467289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978 (or 2975 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 990467289 is about 31471.6902787251. The cubic root of 990467289 is about 996.8122788983.

The spelling of 990467289 in words is "nine hundred ninety million, four hundred sixty-seven thousand, two hundred eighty-nine".