998330865 has 64 divisors (see below), whose sum is σ = 1951340544. Its totient is φ = 425438208.

The previous prime is 998330863. The next prime is 998330867. The reversal of 998330865 is 568033899.

998330865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (998330863) and next prime (998330867).

It is not a de Polignac number, because 998330865 - 2¹ = 998330863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (998330863) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 188382 + ... + 193608.

It is an arithmetic number, because the mean of its divisors is an integer number (30489696).

Almost surely, 2^998330865 is an apocalyptic number.

It is an amenable number.

998330865 is a deficient number, since it is larger than the sum of its proper divisors (953009679).

998330865 is a wasteful number, since it uses less digits than its factorization.

998330865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5366.

The product of its (nonzero) digits is 1399680, while the sum is 51.

The square root of 998330865 is about 31596.3742381939. The cubic root of 998330865 is about 999.4433118224.

The spelling of 998330865 in words is "nine hundred ninety-eight million, three hundred thirty thousand, eight hundred sixty-five".