1987898300 has 18 divisors (see below), whose sum is σ = 4313739528. Its totient is φ = 795159280.

The previous prime is 1987898233. The next prime is 1987898327. The reversal of 1987898300 is 38987891.

It is a super-2 number, since 2×1987898300² = 7903479302285780000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9939392 + ... + 9939591.

It is an arithmetic number, because the mean of its divisors is an integer number (239652196).

Almost surely, 2^1987898300 is an apocalyptic number.

1987898300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1987898300 is an abundant number, since it is smaller than the sum of its proper divisors (2325841228).

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

1987898300 is a wasteful number, since it uses less digits than its factorization.

1987898300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19878997 (or 19878990 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 53.

The square root of 1987898300 is about 44585.8531375144. The cubic root of 1987898300 is about 1257.3747093650.

The spelling of 1987898300 in words is "one billion, nine hundred eighty-seven million, eight hundred ninety-eight thousand, three hundred".