3887885 has 8 divisors (see below), whose sum is σ = 4826520. Its totient is φ = 3002944.

The previous prime is 3887881. The next prime is 3887893. The reversal of 3887885 is 5887883.

It can be written as a sum of positive squares in 4 ways, for example, as 769129 + 3118756 = 877^2 + 1766^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3887885 - 2² = 3887881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3887881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13262 + ... + 13551.

It is an arithmetic number, because the mean of its divisors is an integer number (603315).

Almost surely, 2^3887885 is an apocalyptic number.

It is an amenable number.

3887885 is a deficient number, since it is larger than the sum of its proper divisors (938635).

3887885 is a wasteful number, since it uses less digits than its factorization.

3887885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26847.

The product of its digits is 430080, while the sum is 47.

The square root of 3887885 is about 1971.7720456483. The cubic root of 3887885 is about 157.2429333015.

The spelling of 3887885 in words is "three million, eight hundred eighty-seven thousand, eight hundred eighty-five".