1087879025 has 12 divisors (see below), whose sum is σ = 1349383500. Its totient is φ = 870036480.

The previous prime is 1087879021. The next prime is 1087879027. The reversal of 1087879025 is 5209787801.

It can be written as a sum of positive squares in 6 ways, for example, as 22052416 + 1065826609 = 4696^2 + 32647^2 .

It is not a de Polignac number, because 1087879025 - 2² = 1087879021 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1087879021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138401 + ... + 146049.

It is an arithmetic number, because the mean of its divisors is an integer number (112448625).

Almost surely, 2^1087879025 is an apocalyptic number.

It is an amenable number.

1087879025 is a deficient number, since it is larger than the sum of its proper divisors (261504475).

1087879025 is an equidigital number, since it uses as much as digits as its factorization.

1087879025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13348 (or 13343 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 47.

The square root of 1087879025 is about 32983.0111572609. The cubic root of 1087879025 is about 1028.4745146554.

The spelling of 1087879025 in words is "one billion, eighty-seven million, eight hundred seventy-nine thousand, twenty-five".