1987934652 has 54 divisors (see below), whose sum is σ = 5523421904. Its totient is φ = 602403120.

The previous prime is 1987934647. The next prime is 1987934693. The reversal of 1987934652 is 2564397891.

1987934652 is a `hidden beast` number, since 1 + 98 + 7 + 93 + 465 + 2 = 666.

It is a super-2 number, since 2×1987934652² = 7903768361244722208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 223828 + ... + 232539.

Almost surely, 2^1987934652 is an apocalyptic number.

1987934652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1987934652 is an abundant number, since it is smaller than the sum of its proper divisors (3535487252).

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

1987934652 is a wasteful number, since it uses less digits than its factorization.

1987934652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456399 (or 456383 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 1987934652 is about 44586.2607985913. The cubic root of 1987934652 is about 1257.3823737086.

It can be divided in two parts, 1987 and 934652, that added together give a palindrome (936639).

The spelling of 1987934652 in words is "one billion, nine hundred eighty-seven million, nine hundred thirty-four thousand, six hundred fifty-two".