1087646673 has 8 divisors (see below), whose sum is σ = 1450657600. Its totient is φ = 724866768.

The previous prime is 1087646663. The next prime is 1087646719. The reversal of 1087646673 is 3766467801.

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

It is not a de Polignac number, because 1087646673 - 2¹⁰ = 1087645649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1087646603) 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, 46453 + ... + 65826.

It is an arithmetic number, because the mean of its divisors is an integer number (181332200).

Almost surely, 2^1087646673 is an apocalyptic number.

It is an amenable number.

1087646673 is a deficient number, since it is larger than the sum of its proper divisors (363010927).

1087646673 is a wasteful number, since it uses less digits than its factorization.

1087646673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115511.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The square root of 1087646673 is about 32979.4886709906. The cubic root of 1087646673 is about 1028.4012880312.

The spelling of 1087646673 in words is "one billion, eighty-seven million, six hundred forty-six thousand, six hundred seventy-three".