9986830 has 32 divisors (see below), whose sum is σ = 21441024. Its totient is φ = 3274656.

The previous prime is 9986813. The next prime is 9986831. The reversal of 9986830 is 386899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9986831) 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, 1492 + ... + 4711.

It is an arithmetic number, because the mean of its divisors is an integer number (670032).

Almost surely, 2^9986830 is an apocalyptic number.

9986830 is an abundant number, since it is smaller than the sum of its proper divisors (11454194).

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

9986830 is a wasteful number, since it uses less digits than its factorization.

9986830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6240.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 9986830 is about 3160.1946142603. The cubic root of 9986830 is about 215.3488477694.

It can be divided in two parts, 9986 and 830, that added together give a square (10816 = 104²).

The spelling of 9986830 in words is "nine million, nine hundred eighty-six thousand, eight hundred thirty".