9890868 has 96 divisors (see below), whose sum is σ = 27095040. Its totient is φ = 2782080.

The previous prime is 9890863. The next prime is 9890869. The reversal of 9890868 is 8680989.

9890868 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9890863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139273 + ... + 139343.

It is an arithmetic number, because the mean of its divisors is an integer number (282240).

Almost surely, 2^9890868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9890868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13547520).

9890868 is an abundant number, since it is smaller than the sum of its proper divisors (17204172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9890868 is a wasteful number, since it uses less digits than its factorization.

9890868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 48.

The square root of 9890868 is about 3144.9750396466. The cubic root of 9890868 is about 214.6568747168.

The spelling of 9890868 in words is "nine million, eight hundred ninety thousand, eight hundred sixty-eight".