9979186229 has 4 divisors (see below), whose sum is σ = 9979407360. Its totient is φ = 9978965100.

The previous prime is 9979186219. The next prime is 9979186247. The reversal of 9979186229 is 9226819799.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9226819799 = 683 ⋅13509253.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9979186229 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 (9979186219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15797 + ... + 142154.

It is an arithmetic number, because the mean of its divisors is an integer number (2494851840).

Almost surely, 2^9979186229 is an apocalyptic number.

It is an amenable number.

9979186229 is a deficient number, since it is larger than the sum of its proper divisors (221131).

9979186229 is a wasteful number, since it uses less digits than its factorization.

9979186229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221130.

The product of its digits is 8817984, while the sum is 62.

The square root of 9979186229 is about 99895.8769369387. The cubic root of 9979186229 is about 2152.9389214561.

The spelling of 9979186229 in words is "nine billion, nine hundred seventy-nine million, one hundred eighty-six thousand, two hundred twenty-nine".