9890212 has 12 divisors (see below), whose sum is σ = 17461836. Its totient is φ = 4901120.

The previous prime is 9890201. The next prime is 9890219. The reversal of 9890212 is 2120989.

9890212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 118336 + 9771876 = 344^2 + 3126^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9890219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10489 + ... + 11392.

It is an arithmetic number, because the mean of its divisors is an integer number (1455153).

Almost surely, 2^9890212 is an apocalyptic number.

It is an amenable number.

9890212 is a deficient number, since it is larger than the sum of its proper divisors (7571624).

9890212 is a wasteful number, since it uses less digits than its factorization.

9890212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21998 (or 21996 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 9890212 is about 3144.8707445617. The cubic root of 9890212 is about 214.6521289916.

The spelling of 9890212 in words is "nine million, eight hundred ninety thousand, two hundred twelve".