9996625 has 8 divisors (see below), whose sum is σ = 12475944. Its totient is φ = 7997200.

The previous prime is 9996617. The next prime is 9996631. The reversal of 9996625 is 5266999.

9996625 is digitally balanced in base 3, 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 4 ways, for example, as 614656 + 9381969 = 784^2 + 3063^2 .

It is not a de Polignac number, because 9996625 - 2³ = 9996617 is a prime.

It is a super-2 number, since 2×9996625² = 199865022781250, which contains 22 as substring.

It is a Duffinian 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, 39862 + ... + 40111.

It is an arithmetic number, because the mean of its divisors is an integer number (1559493).

Almost surely, 2^9996625 is an apocalyptic number.

It is an amenable number.

9996625 is a deficient number, since it is larger than the sum of its proper divisors (2479319).

9996625 is an equidigital number, since it uses as much as digits as its factorization.

9996625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79988 (or 79978 counting only the distinct ones).

The product of its digits is 262440, while the sum is 46.

The square root of 9996625 is about 3161.7439807802. The cubic root of 9996625 is about 215.4192288857.

The spelling of 9996625 in words is "nine million, nine hundred ninety-six thousand, six hundred twenty-five".