9961679 has 8 divisors (see below), whose sum is σ = 12260640. Its totient is φ = 7881696.

The previous prime is 9961673. The next prime is 9961687. The reversal of 9961679 is 9761699.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 9961679 - 2¹⁶ = 9896143 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9961673) 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, 54644 + ... + 54825.

It is an arithmetic number, because the mean of its divisors is an integer number (1532580).

Almost surely, 2^9961679 is an apocalyptic number.

9961679 is a deficient number, since it is larger than the sum of its proper divisors (2298961).

9961679 is a wasteful number, since it uses less digits than its factorization.

9961679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109489.

The product of its digits is 183708, while the sum is 47.

The square root of 9961679 is about 3156.2127621566. The cubic root of 9961679 is about 215.1679164153.

The spelling of 9961679 in words is "nine million, nine hundred sixty-one thousand, six hundred seventy-nine".