9947475 has 24 divisors (see below), whose sum is σ = 18275120. Its totient is φ = 5304960.

The previous prime is 9947473. The next prime is 9947489. The reversal of 9947475 is 5747499.

It is not a de Polignac number, because 9947475 - 2¹ = 9947473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 9947475.

It is not an unprimeable number, because it can be changed into a prime (9947473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6694 + ... + 8043.

Almost surely, 2^9947475 is an apocalyptic number.

9947475 is a deficient number, since it is larger than the sum of its proper divisors (8327645).

9947475 is a wasteful number, since it uses less digits than its factorization.

9947475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14756 (or 14745 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 9947475 is about 3153.9617943152. The cubic root of 9947475 is about 215.0656010381.

It can be divided in two parts, 99 and 47475, that added together give a palindrome (47574).

The spelling of 9947475 in words is "nine million, nine hundred forty-seven thousand, four hundred seventy-five".