9979006869 has 16 divisors (see below), whose sum is σ = 15920923200. Its totient is φ = 6140927088.

The previous prime is 9979006847. The next prime is 9979006871. The reversal of 9979006869 is 9686009799.

It is not a de Polignac number, because 9979006869 - 2¹² = 9979002773 is a prime.

It is a super-2 number, since 2×9979006869² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9979006969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14214759 + ... + 14215460.

It is an arithmetic number, because the mean of its divisors is an integer number (995057700).

Almost surely, 2^9979006869 is an apocalyptic number.

It is an amenable number.

9979006869 is a deficient number, since it is larger than the sum of its proper divisors (5941916331).

9979006869 is a wasteful number, since it uses less digits than its factorization.

9979006869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28430241 (or 28430235 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 63.

The square root of 9979006869 is about 99894.9791981559. The cubic root of 9979006869 is about 2152.9260228280.

The spelling of 9979006869 in words is "nine billion, nine hundred seventy-nine million, six thousand, eight hundred sixty-nine".