9980185 has 8 divisors (see below), whose sum is σ = 12093120. Its totient is φ = 7906224.

The previous prime is 9980177. The next prime is 9980209. The reversal of 9980185 is 5810899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9980185 - 2³ = 9980177 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9175 + ... + 10204.

It is an arithmetic number, because the mean of its divisors is an integer number (1511640).

Almost surely, 2^9980185 is an apocalyptic number.

It is an amenable number.

9980185 is a deficient number, since it is larger than the sum of its proper divisors (2112935).

9980185 is a wasteful number, since it uses less digits than its factorization.

9980185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19487.

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 9980185 is about 3159.1430800139. The cubic root of 9980185 is about 215.3010744989.

The spelling of 9980185 in words is "nine million, nine hundred eighty thousand, one hundred eighty-five".