2788327487 has 16 divisors (see below), whose sum is σ = 3061124352. Its totient is φ = 2518797120.

The previous prime is 2788327453. The next prime is 2788327567. The reversal of 2788327487 is 7847238872.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2788327487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2788327417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2139278 + ... + 2140580.

It is an arithmetic number, because the mean of its divisors is an integer number (191320272).

Almost surely, 2^2788327487 is an apocalyptic number.

2788327487 is a deficient number, since it is larger than the sum of its proper divisors (272796865).

2788327487 is a wasteful number, since it uses less digits than its factorization.

2788327487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398.

The product of its digits is 8429568, while the sum is 56.

The square root of 2788327487 is about 52804.6161523782. The cubic root of 2788327487 is about 1407.4984545475.

The spelling of 2788327487 in words is "two billion, seven hundred eighty-eight million, three hundred twenty-seven thousand, four hundred eighty-seven".