2821369 has 2 divisors, whose sum is σ = 2821370. Its totient is φ = 2821368.

The previous prime is 2821331. The next prime is 2821393. The reversal of 2821369 is 9631282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2689600 + 131769 = 1640^2 + 363^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2821369 is a prime.

It is a super-3 number, since 3×2821369³ = 67375333094303359227, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2821369.

It is not a weakly prime, because it can be changed into another prime (2821319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1410684 + 1410685.

It is an arithmetic number, because the mean of its divisors is an integer number (1410685).

2^2821369 is an apocalyptic number.

It is an amenable number.

2821369 is a deficient number, since it is larger than the sum of its proper divisors (1).

2821369 is an equidigital number, since it uses as much as digits as its factorization.

2821369 is an evil number, because the sum of its binary digits is even.

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

The square root of 2821369 is about 1679.6931267348. The cubic root of 2821369 is about 141.3036228389.

It can be divided in two parts, 28213 and 69, that added together give a palindrome (28282).

The spelling of 2821369 in words is "two million, eight hundred twenty-one thousand, three hundred sixty-nine".