1587428009 has 8 divisors (see below), whose sum is σ = 1607014080. Its totient is φ = 1567918000.

The previous prime is 1587427993. The next prime is 1587428021. The reversal of 1587428009 is 9008247851.

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

It is a cyclic number.

It is not a de Polignac number, because 1587428009 - 2⁴ = 1587427993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1587428309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23564 + ... + 61074.

It is an arithmetic number, because the mean of its divisors is an integer number (200876760).

Almost surely, 2^1587428009 is an apocalyptic number.

It is an amenable number.

1587428009 is a deficient number, since it is larger than the sum of its proper divisors (19586071).

1587428009 is a wasteful number, since it uses less digits than its factorization.

1587428009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38031.

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 1587428009 is about 39842.5401926132. The cubic root of 1587428009 is about 1166.5356428186.

The spelling of 1587428009 in words is "one billion, five hundred eighty-seven million, four hundred twenty-eight thousand, nine".