3887706840 has 64 divisors (see below), whose sum is σ = 11704435200. Its totient is φ = 1033049472.

The previous prime is 3887706833. The next prime is 3887706871. The reversal of 3887706840 is 486077883.

It is a super-2 number, since 2×3887706840² = 30228528947565571200, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 23280 + ... + 91199.

It is an arithmetic number, because the mean of its divisors is an integer number (182881800).

Almost surely, 2^3887706840 is an apocalyptic number.

3887706840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3887706840 is an abundant number, since it is smaller than the sum of its proper divisors (7816728360).

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

3887706840 is a wasteful number, since it uses less digits than its factorization.

3887706840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114776 (or 114772 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The square root of 3887706840 is about 62351.4782503190. The cubic root of 3887706840 is about 1572.4053141047.

The spelling of 3887706840 in words is "three billion, eight hundred eighty-seven million, seven hundred six thousand, eight hundred forty".