8981879 has 2 divisors, whose sum is σ = 8981880. Its totient is φ = 8981878.

The previous prime is 8981873. The next prime is 8981887. The reversal of 8981879 is 9781898.

It is a happy number.

8981879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8981879 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8981873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4490939 + 4490940.

It is an arithmetic number, because the mean of its divisors is an integer number (4490940).

Almost surely, 2^8981879 is an apocalyptic number.

8981879 is a deficient number, since it is larger than the sum of its proper divisors (1).

8981879 is an equidigital number, since it uses as much as digits as its factorization.

8981879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 50.

The square root of 8981879 is about 2996.9783115665. The cubic root of 8981879 is about 207.8686840644.

The spelling of 8981879 in words is "eight million, nine hundred eighty-one thousand, eight hundred seventy-nine".