28924838687 has 2 divisors, whose sum is σ = 28924838688. Its totient is φ = 28924838686.

The previous prime is 28924838647. The next prime is 28924838707. The reversal of 28924838687 is 78683842982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28924838687 - 2⁶ = 28924838623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28924838647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14462419343 + 14462419344.

It is an arithmetic number, because the mean of its divisors is an integer number (14462419344).

Almost surely, 2^28924838687 is an apocalyptic number.

28924838687 is a deficient number, since it is larger than the sum of its proper divisors (1).

28924838687 is an equidigital number, since it uses as much as digits as its factorization.

28924838687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74317824, while the sum is 65.

The spelling of 28924838687 in words is "twenty-eight billion, nine hundred twenty-four million, eight hundred thirty-eight thousand, six hundred eighty-seven".