3887447 has 4 divisors (see below), whose sum is σ = 3893640. Its totient is φ = 3881256.

The previous prime is 3887399. The next prime is 3887449. The reversal of 3887447 is 7447883.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3887447 - 2⁶ = 3887383 is a prime.

It is a super-2 number, since 2×3887447² = 30224488355618, 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 (3887449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033 + ... + 3450.

It is an arithmetic number, because the mean of its divisors is an integer number (973410).

Almost surely, 2^3887447 is an apocalyptic number.

3887447 is a deficient number, since it is larger than the sum of its proper divisors (6193).

3887447 is an equidigital number, since it uses as much as digits as its factorization.

3887447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6192.

The product of its digits is 150528, while the sum is 41.

The square root of 3887447 is about 1971.6609749143. The cubic root of 3887447 is about 157.2370282065.

It can be divided in two parts, 3887 and 447, that added together give a palindrome (4334).

The spelling of 3887447 in words is "three million, eight hundred eighty-seven thousand, four hundred forty-seven".