9898969 has 4 divisors (see below), whose sum is σ = 10085796. Its totient is φ = 9712144.

The previous prime is 9898921. The next prime is 9898979. The reversal of 9898969 is 9698989.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2544025 + 7354944 = 1595^2 + 2712^2 .

It is not a de Polignac number, because 9898969 - 2⁷ = 9898841 is a prime.

It is a super-2 number, since 2×9898969² = 195979174525922, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9898979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93334 + ... + 93439.

It is an arithmetic number, because the mean of its divisors is an integer number (2521449).

Almost surely, 2^9898969 is an apocalyptic number.

It is an amenable number.

9898969 is a deficient number, since it is larger than the sum of its proper divisors (186827).

9898969 is a wasteful number, since it uses less digits than its factorization.

9898969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186826.

The product of its digits is 2519424, while the sum is 58.

The square root of 9898969 is about 3146.2627035898. The cubic root of 9898969 is about 214.7154627937.

The spelling of 9898969 in words is "nine million, eight hundred ninety-eight thousand, nine hundred sixty-nine".