9980859 has 24 divisors (see below), whose sum is σ = 15850560. Its totient is φ = 5567184.

The previous prime is 9980857. The next prime is 9980863. The reversal of 9980859 is 9580899.

It is not a de Polignac number, because 9980859 - 2¹ = 9980857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9980857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5532 + ... + 7110.

It is an arithmetic number, because the mean of its divisors is an integer number (660440).

Almost surely, 2^9980859 is an apocalyptic number.

9980859 is a deficient number, since it is larger than the sum of its proper divisors (5869701).

9980859 is a wasteful number, since it uses less digits than its factorization.

9980859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639 (or 1632 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 48.

The square root of 9980859 is about 3159.2497527103. The cubic root of 9980859 is about 215.3059210910.

The spelling of 9980859 in words is "nine million, nine hundred eighty thousand, eight hundred fifty-nine".