1987046484 has 24 divisors (see below), whose sum is σ = 4640361600. Its totient is φ = 661788864.

The previous prime is 1987046471. The next prime is 1987046549. The reversal of 1987046484 is 4846407891.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55084 + ... + 83715.

It is an arithmetic number, because the mean of its divisors is an integer number (193348400).

Almost surely, 2^1987046484 is an apocalyptic number.

It is an amenable number.

1987046484 is an abundant number, since it is smaller than the sum of its proper divisors (2653315116).

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

1987046484 is a wasteful number, since it uses less digits than its factorization.

1987046484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139999 (or 139997 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The square root of 1987046484 is about 44576.2995772417. The cubic root of 1987046484 is about 1257.1950883528.

The spelling of 1987046484 in words is "one billion, nine hundred eighty-seven million, forty-six thousand, four hundred eighty-four".