9912747 has 32 divisors (see below), whose sum is σ = 15257088. Its totient is φ = 5677056.

The previous prime is 9912719. The next prime is 9912757. The reversal of 9912747 is 7472199.

9912747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9912747 - 2⁸ = 9912491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9912757) 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, 38443 + ... + 38699.

It is an arithmetic number, because the mean of its divisors is an integer number (476784).

Almost surely, 2^9912747 is an apocalyptic number.

9912747 is a deficient number, since it is larger than the sum of its proper divisors (5344341).

9912747 is a wasteful number, since it uses less digits than its factorization.

9912747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339.

The product of its digits is 31752, while the sum is 39.

The square root of 9912747 is about 3148.4515241623. The cubic root of 9912747 is about 214.8150347178.

Adding to 9912747 its product of digits (31752), we get a palindrome (9944499).

The spelling of 9912747 in words is "nine million, nine hundred twelve thousand, seven hundred forty-seven".