3821616 has 30 divisors (see below), whose sum is σ = 10695620. Its totient is φ = 1273824.

The previous prime is 3821581. The next prime is 3821627. The reversal of 3821616 is 6161283.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 3821616.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13126 + ... + 13413.

Almost surely, 2^3821616 is an apocalyptic number.

3821616 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3821616 is an abundant number, since it is smaller than the sum of its proper divisors (6874004).

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

3821616 is a wasteful number, since it uses less digits than its factorization.

3821616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26553 (or 26544 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 3821616 is about 1954.8953936208. The cubic root of 3821616 is about 156.3444067343.

Adding to 3821616 its reverse (6161283), we get a palindrome (9982899).

The spelling of 3821616 in words is "three million, eight hundred twenty-one thousand, six hundred sixteen".