8728405039 has 2 divisors, whose sum is σ = 8728405040. Its totient is φ = 8728405038.

The previous prime is 8728405019. The next prime is 8728405067. The reversal of 8728405039 is 9305048278.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8728405039 is a prime.

It is a super-3 number, since 3×8728405039³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8728405039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8728405019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4364202519 + 4364202520.

It is an arithmetic number, because the mean of its divisors is an integer number (4364202520).

Almost surely, 2^8728405039 is an apocalyptic number.

8728405039 is a deficient number, since it is larger than the sum of its proper divisors (1).

8728405039 is an equidigital number, since it uses as much as digits as its factorization.

8728405039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 8728405039 is about 93425.9334392758. The cubic root of 8728405039 is about 2058.9460344329.

The spelling of 8728405039 in words is "eight billion, seven hundred twenty-eight million, four hundred five thousand, thirty-nine".