3887799605 has 16 divisors (see below), whose sum is σ = 4806830064. Its totient is φ = 3016465920.

The previous prime is 3887799593. The next prime is 3887799607. The reversal of 3887799605 is 5069977883.

It can be written as a sum of positive squares in 8 ways, for example, as 1274641 + 3886524964 = 1129^2 + 62342^2 .

It is not a de Polignac number, because 3887799605 - 2⁶ = 3887799541 is a prime.

It is a super-2 number, since 2×3887799605² = 30229971537276312050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3887799607) 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, 24335 + ... + 91475.

It is an arithmetic number, because the mean of its divisors is an integer number (300426879).

Almost surely, 2^3887799605 is an apocalyptic number.

It is an amenable number.

3887799605 is a deficient number, since it is larger than the sum of its proper divisors (919030459).

3887799605 is a wasteful number, since it uses less digits than its factorization.

3887799605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67496.

The product of its (nonzero) digits is 22861440, while the sum is 62.

The square root of 3887799605 is about 62352.2221336177. Note that the first 3 decimals coincide. The cubic root of 3887799605 is about 1572.4178204505.

The spelling of 3887799605 in words is "three billion, eight hundred eighty-seven million, seven hundred ninety-nine thousand, six hundred five".