3821269 has 2 divisors, whose sum is σ = 3821270. Its totient is φ = 3821268.

The previous prime is 3821267. The next prime is 3821273. The reversal of 3821269 is 9621283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3802500 + 18769 = 1950^2 + 137^2 .

It is a cyclic number.

It is not a de Polignac number, because 3821269 - 2¹ = 3821267 is a prime.

It is a super-2 number, since 2×3821269² = 29204193540722, which contains 22 as substring.

Together with 3821267, it forms a pair of twin primes.

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 3821269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3821263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1910634 + 1910635.

It is an arithmetic number, because the mean of its divisors is an integer number (1910635).

Almost surely, 2^3821269 is an apocalyptic number.

It is an amenable number.

3821269 is a deficient number, since it is larger than the sum of its proper divisors (1).

3821269 is an equidigital number, since it uses as much as digits as its factorization.

3821269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 3821269 is about 1954.8066400542. The cubic root of 3821269 is about 156.3396746043.

The spelling of 3821269 in words is "three million, eight hundred twenty-one thousand, two hundred sixty-nine".