3887681770 has 32 divisors (see below), whose sum is σ = 8418441600. Its totient is φ = 1262765376.

The previous prime is 3887681747. The next prime is 3887681773. The reversal of 3887681770 is 771867883.

It is a super-2 number, since 2×3887681770² = 30228139089580665800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3887681773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1460205 + ... + 1462864.

It is an arithmetic number, because the mean of its divisors is an integer number (263076300).

Almost surely, 2^3887681770 is an apocalyptic number.

3887681770 is an abundant number, since it is smaller than the sum of its proper divisors (4530759830).

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

3887681770 is a wasteful number, since it uses less digits than its factorization.

3887681770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923102.

The product of its (nonzero) digits is 3161088, while the sum is 55.

The square root of 3887681770 is about 62351.2772122593. The cubic root of 3887681770 is about 1572.4019341957.

The spelling of 3887681770 in words is "three billion, eight hundred eighty-seven million, six hundred eighty-one thousand, seven hundred seventy".