8779679 has 4 divisors (see below), whose sum is σ = 8818584. Its totient is φ = 8740776.

The previous prime is 8779621. The next prime is 8779703. The reversal of 8779679 is 9769778.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9769778 = 2 ⋅4884889.

It is a cyclic number.

It is not a de Polignac number, because 8779679 - 2¹² = 8775583 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 8779679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8779879) 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, 19112 + ... + 19565.

It is an arithmetic number, because the mean of its divisors is an integer number (2204646).

Almost surely, 2^8779679 is an apocalyptic number.

8779679 is a deficient number, since it is larger than the sum of its proper divisors (38905).

8779679 is a wasteful number, since it uses less digits than its factorization.

8779679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38904.

The product of its digits is 1333584, while the sum is 53.

The square root of 8779679 is about 2963.0523113843. The cubic root of 8779679 is about 206.2969842150.

Subtracting 8779679 from its reverse (9769778), we obtain a palindrome (990099).

The spelling of 8779679 in words is "eight million, seven hundred seventy-nine thousand, six hundred seventy-nine".