1987348928 has 28 divisors (see below), whose sum is σ = 4151208360. Its totient is φ = 941375232.

The previous prime is 1987348889. The next prime is 1987348939. The reversal of 1987348928 is 8298437891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 815951 + ... + 818382.

Almost surely, 2^1987348928 is an apocalyptic number.

It is an amenable number.

1987348928 is an abundant number, since it is smaller than the sum of its proper divisors (2163859432).

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

1987348928 is a wasteful number, since it uses less digits than its factorization.

1987348928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634364 (or 1634354 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 59.

The square root of 1987348928 is about 44579.6918787019. The cubic root of 1987348928 is about 1257.2588700886.

The spelling of 1987348928 in words is "one billion, nine hundred eighty-seven million, three hundred forty-eight thousand, nine hundred twenty-eight".