1987733056 has 21 divisors (see below), whose sum is σ = 3945115681. Its totient is φ = 993688192.

The previous prime is 1987733017. The next prime is 1987733063. The reversal of 1987733056 is 6503377891.

The square root of 1987733056 is 44584.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 85377600 + 1902355456 = 9240^2 + 43616^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 353886 + ... + 359458.

Almost surely, 2^1987733056 is an apocalyptic number.

1987733056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1987733056 is the 44584-th square number.

It is an amenable number.

1987733056 is a deficient number, since it is larger than the sum of its proper divisors (1957382625).

1987733056 is an frugal number, since it uses more digits than its factorization.

1987733056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11158 (or 5575 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 49.

The cubic root of 1987733056 is about 1257.3398686517.

Multiplying 1987733056 by its sum of digits (49), we get a square (97398919744 = 312088²).

The spelling of 1987733056 in words is "one billion, nine hundred eighty-seven million, seven hundred thirty-three thousand, fifty-six".