9808813 has 16 divisors (see below), whose sum is σ = 11975040. Its totient is φ = 7842816.

The previous prime is 9808783. The next prime is 9808823. The reversal of 9808813 is 3188089.

It is a cyclic number.

It is not a de Polignac number, because 9808813 - 2¹³ = 9800621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9808823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16245 + ... + 16837.

It is an arithmetic number, because the mean of its divisors is an integer number (748440).

Almost surely, 2^9808813 is an apocalyptic number.

It is an amenable number.

9808813 is a deficient number, since it is larger than the sum of its proper divisors (2166227).

9808813 is a wasteful number, since it uses less digits than its factorization.

9808813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 9808813 is about 3131.9024569740. The cubic root of 9808813 is about 214.0616251905.

The spelling of 9808813 in words is "nine million, eight hundred eight thousand, eight hundred thirteen".