3881724 has 48 divisors (see below), whose sum is σ = 11294976. Its totient is φ = 1008000.

The previous prime is 3881723. The next prime is 3881741. The reversal of 3881724 is 4271883.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3881723) 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, 1177 + ... + 3024.

It is an arithmetic number, because the mean of its divisors is an integer number (235312).

Almost surely, 2^3881724 is an apocalyptic number.

It is an amenable number.

3881724 is an abundant number, since it is smaller than the sum of its proper divisors (7413252).

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

3881724 is a wasteful number, since it uses less digits than its factorization.

3881724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4226 (or 4224 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 3881724 is about 1970.2091259559. The cubic root of 3881724 is about 157.1598302013.

It can be divided in two parts, 388 and 1724, that added together give a palindrome (2112).

The spelling of 3881724 in words is "three million, eight hundred eighty-one thousand, seven hundred twenty-four".