8719939 has 2 divisors, whose sum is σ = 8719940. Its totient is φ = 8719938.

The previous prime is 8719903. The next prime is 8719943. The reversal of 8719939 is 9399178.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8719939 - 2¹⁵ = 8687171 is a prime.

It is not a weakly prime, because it can be changed into another prime (8719999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4359969 + 4359970.

It is an arithmetic number, because the mean of its divisors is an integer number (4359970).

Almost surely, 2^8719939 is an apocalyptic number.

8719939 is a deficient number, since it is larger than the sum of its proper divisors (1).

8719939 is an equidigital number, since it uses as much as digits as its factorization.

8719939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 46.

The square root of 8719939 is about 2952.9542834253. The cubic root of 8719939 is about 205.8280133614.

The spelling of 8719939 in words is "eight million, seven hundred nineteen thousand, nine hundred thirty-nine".