9990653 has 2 divisors, whose sum is σ = 9990654. Its totient is φ = 9990652.

The previous prime is 9990569. The next prime is 9990661. The reversal of 9990653 is 3560999.

It is a happy number.

9990653 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9972964 + 17689 = 3158^2 + 133^2 .

It is a cyclic number.

It is not a de Polignac number, because 9990653 - 2¹⁴ = 9974269 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 9990653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9990683) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4995326 + 4995327.

It is an arithmetic number, because the mean of its divisors is an integer number (4995327).

Almost surely, 2^9990653 is an apocalyptic number.

It is an amenable number.

9990653 is a deficient number, since it is larger than the sum of its proper divisors (1).

9990653 is an equidigital number, since it uses as much as digits as its factorization.

9990653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65610, while the sum is 41.

The square root of 9990653 is about 3160.7994241964. The cubic root of 9990653 is about 215.3763230749.

The spelling of 9990653 in words is "nine million, nine hundred ninety thousand, six hundred fifty-three".