3987939510 has 48 divisors (see below), whose sum is σ = 10703122560. Its totient is φ = 1029144960.

The previous prime is 3987939493. The next prime is 3987939511. The reversal of 3987939510 is 159397893.

3987939510 is a `hidden beast` number, since 3 + 98 + 7 + 9 + 39 + 510 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3987939511) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 711895 + ... + 717474.

It is an arithmetic number, because the mean of its divisors is an integer number (222981720).

Almost surely, 2^3987939510 is an apocalyptic number.

3987939510 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3987939510 is an abundant number, since it is smaller than the sum of its proper divisors (6715183050).

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

3987939510 is a wasteful number, since it uses less digits than its factorization.

3987939510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429413 (or 1429410 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

The square root of 3987939510 is about 63150.1346791913. The cubic root of 3987939510 is about 1585.8040429558.

The spelling of 3987939510 in words is "three billion, nine hundred eighty-seven million, nine hundred thirty-nine thousand, five hundred ten".