9947609 has 8 divisors (see below), whose sum is σ = 11760960. Its totient is φ = 8232336.

The previous prime is 9947599. The next prime is 9947611. The reversal of 9947609 is 9067499.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9947609 - 2¹² = 9943513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9947609.

It is not an unprimeable number, because it can be changed into a prime (9947009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24299 + ... + 24704.

It is an arithmetic number, because the mean of its divisors is an integer number (1470120).

Almost surely, 2^9947609 is an apocalyptic number.

It is an amenable number.

9947609 is a deficient number, since it is larger than the sum of its proper divisors (1813351).

9947609 is a wasteful number, since it uses less digits than its factorization.

9947609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49039.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 9947609 is about 3153.9830373672. The cubic root of 9947609 is about 215.0665667325.

The spelling of 9947609 in words is "nine million, nine hundred forty-seven thousand, six hundred nine".