1987083924 has 24 divisors (see below), whose sum is σ = 5298890688. Its totient is φ = 567738240.

The previous prime is 1987083863. The next prime is 1987083929. The reversal of 1987083924 is 4293807891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1987083929) by changing a digit.

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, 11827797 + ... + 11827964.

It is an arithmetic number, because the mean of its divisors is an integer number (220787112).

Almost surely, 2^1987083924 is an apocalyptic number.

1987083924 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1987083924 is an abundant number, since it is smaller than the sum of its proper divisors (3311806764).

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

1987083924 is a wasteful number, since it uses less digits than its factorization.

1987083924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23655775 (or 23655773 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 1987083924 is about 44576.7195293687. The cubic root of 1987083924 is about 1257.2029843413.

The spelling of 1987083924 in words is "one billion, nine hundred eighty-seven million, eighty-three thousand, nine hundred twenty-four".