9890830 has 16 divisors (see below), whose sum is σ = 18740880. Its totient is φ = 3748032.

The previous prime is 9890813. The next prime is 9890833. The reversal of 9890830 is 380989.

9890830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 9890830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9890833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25839 + ... + 26218.

It is an arithmetic number, because the mean of its divisors is an integer number (1171305).

Almost surely, 2^9890830 is an apocalyptic number.

9890830 is a deficient number, since it is larger than the sum of its proper divisors (8850050).

9890830 is a wasteful number, since it uses less digits than its factorization.

9890830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52083.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 9890830 is about 3144.9689982574. The cubic root of 9890830 is about 214.6565998177.

The spelling of 9890830 in words is "nine million, eight hundred ninety thousand, eight hundred thirty".