9918983 has 2 divisors, whose sum is σ = 9918984. Its totient is φ = 9918982.

The previous prime is 9918959. The next prime is 9918991. The reversal of 9918983 is 3898199.

9918983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9918983 - 2¹² = 9914887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9918383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4959491 + 4959492.

It is an arithmetic number, because the mean of its divisors is an integer number (4959492).

Almost surely, 2^9918983 is an apocalyptic number.

9918983 is a deficient number, since it is larger than the sum of its proper divisors (1).

9918983 is an equidigital number, since it uses as much as digits as its factorization.

9918983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 47.

The square root of 9918983 is about 3149.4416965551. The cubic root of 9918983 is about 214.8600711995.

It can be divided in two parts, 9918 and 983, that added together give a palindrome (10901).

The spelling of 9918983 in words is "nine million, nine hundred eighteen thousand, nine hundred eighty-three".