1087077889 has 8 divisors (see below), whose sum is σ = 1105493480. Its totient is φ = 1068681600.

The previous prime is 1087077863. The next prime is 1087077907. The reversal of 1087077889 is 9887707801.

It can be written as a sum of positive squares in 4 ways, for example, as 137945025 + 949132864 = 11745^2 + 30808^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1087077889 - 2⁹ = 1087077377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1087077829) 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 in 7 ways as a sum of consecutive naturals, for example, 150247 + ... + 157315.

It is an arithmetic number, because the mean of its divisors is an integer number (138186685).

Almost surely, 2^1087077889 is an apocalyptic number.

It is an amenable number.

1087077889 is a deficient number, since it is larger than the sum of its proper divisors (18415591).

1087077889 is an equidigital number, since it uses as much as digits as its factorization.

1087077889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9651.

The product of its (nonzero) digits is 1580544, while the sum is 55.

The square root of 1087077889 is about 32970.8642440564. The cubic root of 1087077889 is about 1028.2219895493.

The spelling of 1087077889 in words is "one billion, eighty-seven million, seventy-seven thousand, eight hundred eighty-nine".