9959707979 has 8 divisors (see below), whose sum is σ = 10726695840. Its totient is φ = 9192842496.

The previous prime is 9959707973. The next prime is 9959707997. The reversal of 9959707979 is 9797079599.

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 9959707979 - 2¹² = 9959703883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9959707973) 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, 206594 + ... + 250200.

It is an arithmetic number, because the mean of its divisors is an integer number (1340836980).

Almost surely, 2^9959707979 is an apocalyptic number.

9959707979 is a deficient number, since it is larger than the sum of its proper divisors (766987861).

9959707979 is a wasteful number, since it uses less digits than its factorization.

9959707979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61189.

The product of its (nonzero) digits is 101269035, while the sum is 71.

The square root of 9959707979 is about 99798.3365542733. The cubic root of 9959707979 is about 2151.5372441497.

The spelling of 9959707979 in words is "nine billion, nine hundred fifty-nine million, seven hundred seven thousand, nine hundred seventy-nine".