1987716430 has 16 divisors (see below), whose sum is σ = 4089016800. Its totient is φ = 681502752.

The previous prime is 1987716421. The next prime is 1987716469. The reversal of 1987716430 is 346177891.

It is a congruent number.

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, 14197905 + ... + 14198044.

It is an arithmetic number, because the mean of its divisors is an integer number (255563550).

Almost surely, 2^1987716430 is an apocalyptic number.

1987716430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1987716430 is an abundant number, since it is smaller than the sum of its proper divisors (2101300370).

1987716430 is a wasteful number, since it uses less digits than its factorization.

1987716430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28395963.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 1987716430 is about 44583.8135425852. The cubic root of 1987716430 is about 1257.3363630517.

The spelling of 1987716430 in words is "one billion, nine hundred eighty-seven million, seven hundred sixteen thousand, four hundred thirty".