3887965 has 8 divisors (see below), whose sum is σ = 4718520. Its totient is φ = 3075072.

The previous prime is 3887963. The next prime is 3887971. The reversal of 3887965 is 5697883.

It can be written as a sum of positive squares in 4 ways, for example, as 34596 + 3853369 = 186^2 + 1963^2 .

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 3887965 - 2¹ = 3887963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3887963) 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, 3924 + ... + 4813.

It is an arithmetic number, because the mean of its divisors is an integer number (589815).

Almost surely, 2^3887965 is an apocalyptic number.

It is an amenable number.

3887965 is a deficient number, since it is larger than the sum of its proper divisors (830555).

3887965 is an equidigital number, since it uses as much as digits as its factorization.

3887965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8831.

The product of its digits is 362880, while the sum is 46.

The square root of 3887965 is about 1971.7923318646. The cubic root of 3887965 is about 157.2440118098.

The spelling of 3887965 in words is "three million, eight hundred eighty-seven thousand, nine hundred sixty-five".