9996890 has 16 divisors (see below), whose sum is σ = 18128232. Its totient is φ = 3969024.

The previous prime is 9996887. The next prime is 9996929. The reversal of 9996890 is 986999.

It can be written as a sum of positive squares in 4 ways, for example, as 7689529 + 2307361 = 2773^2 + 1519^2 .

It is a Curzon number.

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, 2279 + ... + 5018.

Almost surely, 2^9996890 is an apocalyptic number.

9996890 is a deficient number, since it is larger than the sum of its proper divisors (8131342).

9996890 is a wasteful number, since it uses less digits than its factorization.

9996890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7441.

The product of its (nonzero) digits is 314928, while the sum is 50.

The square root of 9996890 is about 3161.7858877539. The cubic root of 9996890 is about 215.4211323812.

The spelling of 9996890 in words is "nine million, nine hundred ninety-six thousand, eight hundred ninety".