9800818 has 8 divisors (see below), whose sum is σ = 15043248. Its totient is φ = 4786404.

The previous prime is 9800803. The next prime is 9800821. The reversal of 9800818 is 8180089.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56896 + ... + 57067.

It is an arithmetic number, because the mean of its divisors is an integer number (1880406).

Almost surely, 2^9800818 is an apocalyptic number.

9800818 is a deficient number, since it is larger than the sum of its proper divisors (5242430).

9800818 is a wasteful number, since it uses less digits than its factorization.

9800818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114008.

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 9800818 is about 3130.6258160310. The cubic root of 9800818 is about 214.0034500274.

It can be divided in two parts, 980081 and 8, that added together give a palindrome (980089).

The spelling of 9800818 in words is "nine million, eight hundred thousand, eight hundred eighteen".