2087386877 has 4 divisors (see below), whose sum is σ = 2121606396. Its totient is φ = 2053167360.

The previous prime is 2087386867. The next prime is 2087386907. The reversal of 2087386877 is 7786837802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7786837802 = 2 ⋅3893418901.

It can be written as a sum of positive squares in 2 ways, for example, as 678810916 + 1408575961 = 26054^2 + 37531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2087386877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2087386867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17109668 + ... + 17109789.

It is an arithmetic number, because the mean of its divisors is an integer number (530401599).

Almost surely, 2^2087386877 is an apocalyptic number.

It is an amenable number.

2087386877 is a deficient number, since it is larger than the sum of its proper divisors (34219519).

2087386877 is an equidigital number, since it uses as much as digits as its factorization.

2087386877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34219518.

The product of its (nonzero) digits is 6322176, while the sum is 56.

The square root of 2087386877 is about 45687.9292264379. The cubic root of 2087386877 is about 1278.0101890020.

The spelling of 2087386877 in words is "two billion, eighty-seven million, three hundred eighty-six thousand, eight hundred seventy-seven".