1587476985 has 16 divisors (see below), whose sum is σ = 2621898240. Its totient is φ = 819342720.

The previous prime is 1587476977. The next prime is 1587477019. The reversal of 1587476985 is 5896747851.

It is not a de Polignac number, because 1587476985 - 2³ = 1587476977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1706500 + ... + 1707429.

It is an arithmetic number, because the mean of its divisors is an integer number (163868640).

Almost surely, 2^1587476985 is an apocalyptic number.

1587476985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1587476985 is a deficient number, since it is larger than the sum of its proper divisors (1034421255).

1587476985 is a wasteful number, since it uses less digits than its factorization.

1587476985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3413968.

The product of its digits is 16934400, while the sum is 60.

The square root of 1587476985 is about 39843.1548073192. The cubic root of 1587476985 is about 1166.5476395122.

The spelling of 1587476985 in words is "one billion, five hundred eighty-seven million, four hundred seventy-six thousand, nine hundred eighty-five".