3826621 has 2 divisors, whose sum is σ = 3826622. Its totient is φ = 3826620.

The previous prime is 3826601. The next prime is 3826631. The reversal of 3826621 is 1266283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3204100 + 622521 = 1790^2 + 789^2 .

It is a cyclic number.

It is not a de Polignac number, because 3826621 - 2¹¹ = 3824573 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3826621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3826601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1913310 + 1913311.

It is an arithmetic number, because the mean of its divisors is an integer number (1913311).

Almost surely, 2^3826621 is an apocalyptic number.

It is an amenable number.

3826621 is a deficient number, since it is larger than the sum of its proper divisors (1).

3826621 is an equidigital number, since it uses as much as digits as its factorization.

3826621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 28.

The square root of 3826621 is about 1956.1750944126. The cubic root of 3826621 is about 156.4126293920.

The spelling of 3826621 in words is "three million, eight hundred twenty-six thousand, six hundred twenty-one".