9912709 has 4 divisors (see below), whose sum is σ = 9964800. Its totient is φ = 9860620.

The previous prime is 9912703. The next prime is 9912719. The reversal of 9912709 is 9072199.

9912709 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9912709 - 2²¹ = 7815557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9912703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25759 + ... + 26140.

It is an arithmetic number, because the mean of its divisors is an integer number (2491200).

Almost surely, 2^9912709 is an apocalyptic number.

It is an amenable number.

9912709 is a deficient number, since it is larger than the sum of its proper divisors (52091).

9912709 is a wasteful number, since it uses less digits than its factorization.

9912709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52090.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 9912709 is about 3148.4454894440. The cubic root of 9912709 is about 214.8147602233.

The spelling of 9912709 in words is "nine million, nine hundred twelve thousand, seven hundred nine".