8999479 has 4 divisors (see below), whose sum is σ = 9005976. Its totient is φ = 8992984.

The previous prime is 8999467. The next prime is 8999489. The reversal of 8999479 is 9749998.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9749998 = 2 ⋅4874999.

It is a cyclic number.

It is not a de Polignac number, because 8999479 - 2¹⁹ = 8475191 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 (8999429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244 + ... + 4249.

It is an arithmetic number, because the mean of its divisors is an integer number (2251494).

Almost surely, 2^8999479 is an apocalyptic number.

8999479 is a deficient number, since it is larger than the sum of its proper divisors (6497).

8999479 is a wasteful number, since it uses less digits than its factorization.

8999479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6496.

The product of its digits is 1469664, while the sum is 55.

The square root of 8999479 is about 2999.9131654100. The cubic root of 8999479 is about 208.0043684364.

The spelling of 8999479 in words is "eight million, nine hundred ninety-nine thousand, four hundred seventy-nine".