1987948036 has 24 divisors (see below), whose sum is σ = 3780143360. Its totient is φ = 911282400.

The previous prime is 1987948003. The next prime is 1987948087. The reversal of 1987948036 is 6308497891.

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, 419535 + ... + 424246.

Almost surely, 2^1987948036 is an apocalyptic number.

It is an amenable number.

1987948036 is a deficient number, since it is larger than the sum of its proper divisors (1792195324).

1987948036 is a wasteful number, since it uses less digits than its factorization.

1987948036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843835 (or 843833 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 55.

The square root of 1987948036 is about 44586.4108894179. The cubic root of 1987948036 is about 1257.3851955263.

The spelling of 1987948036 in words is "one billion, nine hundred eighty-seven million, nine hundred forty-eight thousand, thirty-six".