8044239487 has 2 divisors, whose sum is σ = 8044239488. Its totient is φ = 8044239486.

The previous prime is 8044239481. The next prime is 8044239521. The reversal of 8044239487 is 7849324408.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8044239487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8044239487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8044239481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4022119743 + 4022119744.

It is an arithmetic number, because the mean of its divisors is an integer number (4022119744).

Almost surely, 2^8044239487 is an apocalyptic number.

8044239487 is a deficient number, since it is larger than the sum of its proper divisors (1).

8044239487 is an equidigital number, since it uses as much as digits as its factorization.

8044239487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 49.

The square root of 8044239487 is about 89689.6843956985. The cubic root of 8044239487 is about 2003.6798491194.

The spelling of 8044239487 in words is "eight billion, forty-four million, two hundred thirty-nine thousand, four hundred eighty-seven".