1587285860 has 12 divisors (see below), whose sum is σ = 3333300348. Its totient is φ = 634914336.

The previous prime is 1587285851. The next prime is 1587285863. The reversal of 1587285860 is 685827851.

It can be written as a sum of positive squares in 2 ways, for example, as 844832356 + 742453504 = 29066^2 + 27248^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1587285799 and 1587285808.

It is not an unprimeable number, because it can be changed into a prime (1587285863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39682127 + ... + 39682166.

It is an arithmetic number, because the mean of its divisors is an integer number (277775029).

Almost surely, 2^1587285860 is an apocalyptic number.

1587285860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1587285860 is an abundant number, since it is smaller than the sum of its proper divisors (1746014488).

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

1587285860 is a wasteful number, since it uses less digits than its factorization.

1587285860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79364302 (or 79364300 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 50.

The square root of 1587285860 is about 39840.7562679224. The cubic root of 1587285860 is about 1166.5008219587.

The spelling of 1587285860 in words is "one billion, five hundred eighty-seven million, two hundred eighty-five thousand, eight hundred sixty".