8799979 has 4 divisors (see below), whose sum is σ = 8844400. Its totient is φ = 8755560.

The previous prime is 8799977. The next prime is 8799997. The reversal of 8799979 is 9799978.

8799979 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8799979 - 2¹ = 8799977 is a prime.

It is a Duffinian number.

8799979 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8799971) 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, 21912 + ... + 22309.

It is an arithmetic number, because the mean of its divisors is an integer number (2211100).

Almost surely, 2^8799979 is an apocalyptic number.

8799979 is a deficient number, since it is larger than the sum of its proper divisors (44421).

8799979 is a wasteful number, since it uses less digits than its factorization.

8799979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44420.

The product of its digits is 2571912, while the sum is 58.

The square root of 8799979 is about 2966.4758552869. The cubic root of 8799979 is about 206.4558588648.

Subtracting 8799979 from its reverse (9799978), we obtain a palindrome (999999).

The spelling of 8799979 in words is "eight million, seven hundred ninety-nine thousand, nine hundred seventy-nine".