8789979 has 32 divisors (see below), whose sum is σ = 13745664. Its totient is φ = 4942080.

The previous prime is 8789953. The next prime is 8789981. The reversal of 8789979 is 9799878.

It is a happy number.

It is not a de Polignac number, because 8789979 - 2¹² = 8785883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8789909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27927 + ... + 28239.

It is an arithmetic number, because the mean of its divisors is an integer number (429552).

Almost surely, 2^8789979 is an apocalyptic number.

8789979 is a deficient number, since it is larger than the sum of its proper divisors (4955685).

8789979 is a wasteful number, since it uses less digits than its factorization.

8789979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387.

The product of its digits is 2286144, while the sum is 57.

The square root of 8789979 is about 2964.7898745105. The cubic root of 8789979 is about 206.3776260601.

It can be divided in two parts, 87899 and 79, that added together give a palindrome (87978).

The spelling of 8789979 in words is "eight million, seven hundred eighty-nine thousand, nine hundred seventy-nine".