3821396 has 12 divisors (see below), whose sum is σ = 7080948. Its totient is φ = 1798272.

The previous prime is 3821387. The next prime is 3821399. The reversal of 3821396 is 6931283.

It can be written as a sum of positive squares in 2 ways, for example, as 1144900 + 2676496 = 1070^2 + 1636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3821399) 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, 28031 + ... + 28166.

It is an arithmetic number, because the mean of its divisors is an integer number (590079).

Almost surely, 2^3821396 is an apocalyptic number.

It is an amenable number.

3821396 is a deficient number, since it is larger than the sum of its proper divisors (3259552).

3821396 is a wasteful number, since it uses less digits than its factorization.

3821396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56218 (or 56216 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 3821396 is about 1954.8391238156. The cubic root of 3821396 is about 156.3414065699.

The spelling of 3821396 in words is "three million, eight hundred twenty-one thousand, three hundred ninety-six".