9947625 has 32 divisors (see below), whose sum is σ = 16982784. Its totient is φ = 5168000.

The previous prime is 9947611. The next prime is 9947627. The reversal of 9947625 is 5267499.

It is not a de Polignac number, because 9947625 - 2⁸ = 9947369 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9947627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15052 + ... + 15698.

It is an arithmetic number, because the mean of its divisors is an integer number (530712).

Almost surely, 2^9947625 is an apocalyptic number.

It is an amenable number.

9947625 is a deficient number, since it is larger than the sum of its proper divisors (7035159).

9947625 is a wasteful number, since it uses less digits than its factorization.

9947625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 696 counting only the distinct ones).

The product of its digits is 136080, while the sum is 42.

The square root of 9947625 is about 3153.9855738415. The cubic root of 9947625 is about 215.0666820387.

The spelling of 9947625 in words is "nine million, nine hundred forty-seven thousand, six hundred twenty-five".