8879999 has 2 divisors, whose sum is σ = 8880000. Its totient is φ = 8879998.

The previous prime is 8879993. The next prime is 8880007. The reversal of 8879999 is 9999788.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8879999 - 2⁸ = 8879743 is a prime.

It is a Sophie Germain prime.

8879999 is a modest number, since divided by 9999 gives 887 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8879993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4439999 + 4440000.

It is an arithmetic number, because the mean of its divisors is an integer number (4440000).

Almost surely, 2^8879999 is an apocalyptic number.

8879999 is a deficient number, since it is larger than the sum of its proper divisors (1).

8879999 is an equidigital number, since it uses as much as digits as its factorization.

8879999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 59.

The square root of 8879999 is about 2979.9327173612. The cubic root of 8879999 is about 207.0797533164.

The spelling of 8879999 in words is "eight million, eight hundred seventy-nine thousand, nine hundred ninety-nine".