2087366549 has 2 divisors, whose sum is σ = 2087366550. Its totient is φ = 2087366548.

The previous prime is 2087366537. The next prime is 2087366551. The reversal of 2087366549 is 9456637802.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1955231524 + 132135025 = 44218^2 + 11495^2 .

It is a cyclic number.

It is not a de Polignac number, because 2087366549 - 2²⁴ = 2070589333 is a prime.

Together with 2087366551, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2087366497 and 2087366506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2087366509) 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 as a sum of consecutive naturals, namely, 1043683274 + 1043683275.

It is an arithmetic number, because the mean of its divisors is an integer number (1043683275).

Almost surely, 2^2087366549 is an apocalyptic number.

It is an amenable number.

2087366549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2087366549 is an equidigital number, since it uses as much as digits as its factorization.

2087366549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The square root of 2087366549 is about 45687.7067601341. The cubic root of 2087366549 is about 1278.0060403580.

The spelling of 2087366549 in words is "two billion, eighty-seven million, three hundred sixty-six thousand, five hundred forty-nine".