9427279249 has 8 divisors (see below), whose sum is σ = 9521628480. Its totient is φ = 9332984496.

The previous prime is 9427279243. The next prime is 9427279289. The reversal of 9427279249 is 9429727249.

9427279249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9427279249 - 2¹¹ = 9427277201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9427279249.

It is not an unprimeable number, because it can be changed into a prime (9427279243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394947 + ... + 418135.

It is an arithmetic number, because the mean of its divisors is an integer number (1190203560).

Almost surely, 2^9427279249 is an apocalyptic number.

It is an amenable number.

9427279249 is a deficient number, since it is larger than the sum of its proper divisors (94349231).

9427279249 is a wasteful number, since it uses less digits than its factorization.

9427279249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27239.

The product of its digits is 4572288, while the sum is 55.

The square root of 9427279249 is about 97094.1772147022. The cubic root of 9427279249 is about 2112.4938691698.

The spelling of 9427279249 in words is "nine billion, four hundred twenty-seven million, two hundred seventy-nine thousand, two hundred forty-nine".