3986924 has 12 divisors (see below), whose sum is σ = 7045584. Its totient is φ = 1973904.

The previous prime is 3986923. The next prime is 3986929. The reversal of 3986924 is 4296893.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3986921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4427 + ... + 5250.

It is an arithmetic number, because the mean of its divisors is an integer number (587132).

Almost surely, 2^3986924 is an apocalyptic number.

It is an amenable number.

3986924 is a deficient number, since it is larger than the sum of its proper divisors (3058660).

3986924 is a wasteful number, since it uses less digits than its factorization.

3986924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9784 (or 9782 counting only the distinct ones).

The product of its digits is 93312, while the sum is 41.

The square root of 3986924 is about 1996.7283240341. The cubic root of 3986924 is about 158.5669425687.

It can be divided in two parts, 39869 and 24, that added together give a palindrome (39893).

The spelling of 3986924 in words is "three million, nine hundred eighty-six thousand, nine hundred twenty-four".