9890012 has 24 divisors (see below), whose sum is σ = 19241712. Its totient is φ = 4409600.

The previous prime is 9890011. The next prime is 9890017. The reversal of 9890012 is 2100989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9890011) 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 7 ways as a sum of consecutive naturals, for example, 212 + ... + 4452.

It is an arithmetic number, because the mean of its divisors is an integer number (801738).

Almost surely, 2^9890012 is an apocalyptic number.

It is an amenable number.

9890012 is a deficient number, since it is larger than the sum of its proper divisors (9351700).

9890012 is a wasteful number, since it uses less digits than its factorization.

9890012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4309 (or 4307 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 9890012 is about 3144.8389465917. The cubic root of 9890012 is about 214.6506820825.

It can be divided in two parts, 9 and 890012, that multiplied together give a palindrome (8010108).

The spelling of 9890012 in words is "nine million, eight hundred ninety thousand, twelve".