9998365 has 16 divisors (see below), whose sum is σ = 13004208. Its totient is φ = 7335936.

The previous prime is 9998333. The next prime is 9998377. The reversal of 9998365 is 5638999.

It can be written as a sum of positive squares in 8 ways, for example, as 1582564 + 8415801 = 1258^2 + 2901^2 .

It is a cyclic number.

It is not a de Polignac number, because 9998365 - 2⁵ = 9998333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12147 + ... + 12943.

It is an arithmetic number, because the mean of its divisors is an integer number (812763).

Almost surely, 2^9998365 is an apocalyptic number.

It is an amenable number.

9998365 is a deficient number, since it is larger than the sum of its proper divisors (3005843).

9998365 is a wasteful number, since it uses less digits than its factorization.

9998365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008.

The product of its digits is 524880, while the sum is 49.

The square root of 9998365 is about 3162.0191334019. The cubic root of 9998365 is about 215.4317266941.

The spelling of 9998365 in words is "nine million, nine hundred ninety-eight thousand, three hundred sixty-five".