8872739 has 2 divisors, whose sum is σ = 8872740. Its totient is φ = 8872738.

The previous prime is 8872723. The next prime is 8872741. The reversal of 8872739 is 9372788.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8872739 - 2⁴ = 8872723 is a prime.

It is a Sophie Germain prime.

Together with 8872741, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8872739.

It is not a weakly prime, because it can be changed into another prime (8872139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4436369 + 4436370.

It is an arithmetic number, because the mean of its divisors is an integer number (4436370).

Almost surely, 2^8872739 is an apocalyptic number.

8872739 is a deficient number, since it is larger than the sum of its proper divisors (1).

8872739 is an equidigital number, since it uses as much as digits as its factorization.

8872739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 44.

The square root of 8872739 is about 2978.7143199710. The cubic root of 8872739 is about 207.0233040268.

It can be divided in two parts, 88 and 72739, that added together give a palindrome (72827).

The spelling of 8872739 in words is "eight million, eight hundred seventy-two thousand, seven hundred thirty-nine".