2789473687 has 32 divisors (see below), whose sum is σ = 3816046080. Its totient is φ = 1968520320.

The previous prime is 2789473681. The next prime is 2789473693. The reversal of 2789473687 is 7863749872.

It is an interprime number because it is at equal distance from previous prime (2789473681) and next prime (2789473693).

It is a de Polignac number, because none of the positive numbers 2^k-2789473687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2789473681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26764 + ... + 79342.

It is an arithmetic number, because the mean of its divisors is an integer number (119251440).

Almost surely, 2^2789473687 is an apocalyptic number.

2789473687 is a deficient number, since it is larger than the sum of its proper divisors (1026572393).

2789473687 is a wasteful number, since it uses less digits than its factorization.

2789473687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52663.

The product of its digits is 28449792, while the sum is 61.

The square root of 2789473687 is about 52815.4682550482. The cubic root of 2789473687 is about 1407.6912886305.

The spelling of 2789473687 in words is "two billion, seven hundred eighty-nine million, four hundred seventy-three thousand, six hundred eighty-seven".