3887620 has 48 divisors (see below), whose sum is σ = 9144576. Its totient is φ = 1376000.

The previous prime is 3887581. The next prime is 3887623. The reversal of 3887620 is 267883.

It is a happy number.

3887620 is nontrivially palindromic in base 9.

It is a super-2 number, since 2×3887620² = 30227178528800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3887623) 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, 8805 + ... + 9235.

It is an arithmetic number, because the mean of its divisors is an integer number (190512).

Almost surely, 2^3887620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3887620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4572288).

3887620 is an abundant number, since it is smaller than the sum of its proper divisors (5256956).

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

3887620 is a wasteful number, since it uses less digits than its factorization.

3887620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 3887620 is about 1971.7048460660. The cubic root of 3887620 is about 157.2393606372.

It can be divided in two parts, 388 and 7620, that added together give a palindrome (8008).

The spelling of 3887620 in words is "three million, eight hundred eighty-seven thousand, six hundred twenty".