3821706 has 48 divisors (see below), whose sum is σ = 9672000. Its totient is φ = 1090152.

The previous prime is 3821689. The next prime is 3821723. The reversal of 3821706 is 6071283.

It is an interprime number because it is at equal distance from previous prime (3821689) and next prime (3821723).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3821706.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5865 + ... + 6483.

It is an arithmetic number, because the mean of its divisors is an integer number (201500).

Almost surely, 2^3821706 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3821706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4836000).

3821706 is an abundant number, since it is smaller than the sum of its proper divisors (5850294).

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

3821706 is a wasteful number, since it uses less digits than its factorization.

3821706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 3821706 is about 1954.9184126198. The cubic root of 3821706 is about 156.3456340412.

Adding to 3821706 its reverse (6071283), we get a palindrome (9892989).

The spelling of 3821706 in words is "three million, eight hundred twenty-one thousand, seven hundred six".