909098489 has 6 divisors (see below), whose sum is σ = 984408606. Its totient is φ = 839167680.

The previous prime is 909098479. The next prime is 909098507. The reversal of 909098489 is 984890909.

It can be written as a sum of positive squares in 3 ways, for example, as 22250089 + 886848400 = 4717^2 + 29780^2 .

It is a de Polignac number, because none of the positive numbers 2^k-909098489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (909098479) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2689472 + ... + 2689809.

It is an arithmetic number, because the mean of its divisors is an integer number (164068101).

Almost surely, 2^909098489 is an apocalyptic number.

It is an amenable number.

909098489 is a deficient number, since it is larger than the sum of its proper divisors (75310117).

909098489 is a wasteful number, since it uses less digits than its factorization.

909098489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5379307 (or 5379294 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 56.

The square root of 909098489 is about 30151.2601560863. The cubic root of 909098489 is about 968.7319985333.

The spelling of 909098489 in words is "nine hundred nine million, ninety-eight thousand, four hundred eighty-nine".