1087639580 has 12 divisors (see below), whose sum is σ = 2284043160. Its totient is φ = 435055824.

The previous prime is 1087639559. The next prime is 1087639603. The reversal of 1087639580 is 859367801.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27190970 + ... + 27191009.

It is an arithmetic number, because the mean of its divisors is an integer number (190336930).

Almost surely, 2^1087639580 is an apocalyptic number.

1087639580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1087639580 is an abundant number, since it is smaller than the sum of its proper divisors (1196403580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1087639580 is a wasteful number, since it uses less digits than its factorization.

1087639580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54381988 (or 54381986 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 1087639580 is about 32979.3811342784. The cubic root of 1087639580 is about 1028.3990524811.

The spelling of 1087639580 in words is "one billion, eighty-seven million, six hundred thirty-nine thousand, five hundred eighty".