3821516 has 6 divisors (see below), whose sum is σ = 6687660. Its totient is φ = 1910756.

The previous prime is 3821513. The next prime is 3821563. The reversal of 3821516 is 6151283.

It is not an unprimeable number, because it can be changed into a prime (3821513) 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 as a sum of consecutive naturals, namely, 477686 + ... + 477693.

It is an arithmetic number, because the mean of its divisors is an integer number (1114610).

Almost surely, 2^3821516 is an apocalyptic number.

It is an amenable number.

3821516 is a deficient number, since it is larger than the sum of its proper divisors (2866144).

3821516 is a wasteful number, since it uses less digits than its factorization.

3821516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955383 (or 955381 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 3821516 is about 1954.8698166374. The cubic root of 3821516 is about 156.3430430375.

Adding to 3821516 its reverse (6151283), we get a palindrome (9972799).

The spelling of 3821516 in words is "three million, eight hundred twenty-one thousand, five hundred sixteen".