3926646 has 36 divisors (see below), whose sum is σ = 8829756. Its totient is φ = 1261080.

The previous prime is 3926641. The next prime is 3926651. The reversal of 3926646 is 6466293.

3926646 is a `hidden beast` number, since 3 + 9 + 2 + 6 + 646 = 666.

It is an interprime number because it is at equal distance from previous prime (3926641) and next prime (3926651).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3926646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3926641) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17185 + ... + 17411.

It is an arithmetic number, because the mean of its divisors is an integer number (245271).

Almost surely, 2^3926646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3926646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4414878).

3926646 is an abundant number, since it is smaller than the sum of its proper divisors (4903110).

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

3926646 is a wasteful number, since it uses less digits than its factorization.

3926646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 263 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 3926646 is about 1981.5766449976. The cubic root of 3926646 is about 157.7637606112.

The spelling of 3926646 in words is "three million, nine hundred twenty-six thousand, six hundred forty-six".