1087065020 has 24 divisors (see below), whose sum is σ = 2305443168. Its totient is φ = 430520000.

The previous prime is 1087065011. The next prime is 1087065041. The reversal of 1087065020 is 205607801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267056 + ... + 271095.

It is an arithmetic number, because the mean of its divisors is an integer number (96060132).

Almost surely, 2^1087065020 is an apocalyptic number.

1087065020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1087065020 is an abundant number, since it is smaller than the sum of its proper divisors (1218378148).

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

1087065020 is a wasteful number, since it uses less digits than its factorization.

1087065020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538261 (or 538259 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 1087065020 is about 32970.6690863258. The cubic root of 1087065020 is about 1028.2179321151.

The spelling of 1087065020 in words is "one billion, eighty-seven million, sixty-five thousand, twenty".