9975018 has 8 divisors (see below), whose sum is σ = 19950048. Its totient is φ = 3325004.

The previous prime is 9974983. The next prime is 9975029. The reversal of 9975018 is 8105799.

It is a happy number.

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

9975018 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831246 + ... + 831257.

It is an arithmetic number, because the mean of its divisors is an integer number (2493756).

Almost surely, 2^9975018 is an apocalyptic number.

9975018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9975018 is a wasteful number, since it uses less digits than its factorization.

9975018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662508.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 9975018 is about 3158.3251890836. The cubic root of 9975018 is about 215.2639124393.

The spelling of 9975018 in words is "nine million, nine hundred seventy-five thousand, eighteen".