1087796985 has 16 divisors (see below), whose sum is σ = 1898700480. Its totient is φ = 527416640.

The previous prime is 1087796959. The next prime is 1087796993. The reversal of 1087796985 is 5896977801.

It is not a de Polignac number, because 1087796985 - 2⁸ = 1087796729 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3296190 + ... + 3296519.

It is an arithmetic number, because the mean of its divisors is an integer number (118668780).

Almost surely, 2^1087796985 is an apocalyptic number.

1087796985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1087796985 is a deficient number, since it is larger than the sum of its proper divisors (810903495).

1087796985 is a wasteful number, since it uses less digits than its factorization.

1087796985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6592728.

The product of its (nonzero) digits is 7620480, while the sum is 60.

The square root of 1087796985 is about 32981.7674632516. The cubic root of 1087796985 is about 1028.4486606256.

The spelling of 1087796985 in words is "one billion, eighty-seven million, seven hundred ninety-six thousand, nine hundred eighty-five".