9649679 has 4 divisors (see below), whose sum is σ = 10391976. Its totient is φ = 8907384.

The previous prime is 9649669. The next prime is 9649729. The reversal of 9649679 is 9769469.

9649679 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 an emirpimes, since its reverse is a distinct semiprime: 9769469 = 1753 ⋅5573.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9649679 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 (9649609) 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 3 ways as a sum of consecutive naturals, for example, 371129 + ... + 371154.

It is an arithmetic number, because the mean of its divisors is an integer number (2597994).

Almost surely, 2^9649679 is an apocalyptic number.

9649679 is a deficient number, since it is larger than the sum of its proper divisors (742297).

9649679 is a wasteful number, since it uses less digits than its factorization.

9649679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742296.

The product of its digits is 734832, while the sum is 50.

The square root of 9649679 is about 3106.3932461940. The cubic root of 9649679 is about 212.8976930859.

The spelling of 9649679 in words is "nine million, six hundred forty-nine thousand, six hundred seventy-nine".