1587399212 has 24 divisors (see below), whose sum is σ = 3176113920. Its totient is φ = 680032080.

The previous prime is 1587399199. The next prime is 1587399221. The reversal of 1587399212 is 2129937851.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66089 + ... + 86847.

It is an arithmetic number, because the mean of its divisors is an integer number (132338080).

Almost surely, 2^1587399212 is an apocalyptic number.

It is an amenable number.

1587399212 is an abundant number, since it is smaller than the sum of its proper divisors (1588714708).

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

1587399212 is a wasteful number, since it uses less digits than its factorization.

1587399212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23501 (or 23499 counting only the distinct ones).

The product of its digits is 272160, while the sum is 47.

The square root of 1587399212 is about 39842.1788058836. The cubic root of 1587399212 is about 1166.5285888652.

The spelling of 1587399212 in words is "one billion, five hundred eighty-seven million, three hundred ninety-nine thousand, two hundred twelve".