1087923049 has 2 divisors, whose sum is σ = 1087923050. Its totient is φ = 1087923048.

The previous prime is 1087923047. The next prime is 1087923059. The reversal of 1087923049 is 9403297801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 946669824 + 141253225 = 30768^2 + 11885^2 .

It is a cyclic number.

It is not a de Polignac number, because 1087923049 - 2¹ = 1087923047 is a prime.

Together with 1087923047, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1087922996 and 1087923014.

It is not a weakly prime, because it can be changed into another prime (1087923047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543961524 + 543961525.

It is an arithmetic number, because the mean of its divisors is an integer number (543961525).

Almost surely, 2^1087923049 is an apocalyptic number.

It is an amenable number.

1087923049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087923049 is an equidigital number, since it uses as much as digits as its factorization.

1087923049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 1087923049 is about 32983.6785243854. The cubic root of 1087923049 is about 1028.4883878130.

The spelling of 1087923049 in words is "one billion, eighty-seven million, nine hundred twenty-three thousand, forty-nine".