1987324412 has 24 divisors (see below), whose sum is σ = 3809378160. Its totient is φ = 902961920.

The previous prime is 1987324373. The next prime is 1987324447. The reversal of 1987324412 is 2144237891.

It is a super-2 number, since 2×1987324412² = 7898916637062291488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1987324412.

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, 501914 + ... + 505857.

It is an arithmetic number, because the mean of its divisors is an integer number (158724090).

Almost surely, 2^1987324412 is an apocalyptic number.

It is an amenable number.

1987324412 is a deficient number, since it is larger than the sum of its proper divisors (1822053748).

1987324412 is a wasteful number, since it uses less digits than its factorization.

1987324412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007821 (or 1007819 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 1987324412 is about 44579.4169096008. The cubic root of 1987324412 is about 1257.2537002055.

The spelling of 1987324412 in words is "one billion, nine hundred eighty-seven million, three hundred twenty-four thousand, four hundred twelve".