2960821 has 2 divisors, whose sum is σ = 2960822. Its totient is φ = 2960820.

The previous prime is 2960819. The next prime is 2960861. The reversal of 2960821 is 1280692.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1612900 + 1347921 = 1270^2 + 1161^2 .

It is a cyclic number.

It is not a de Polignac number, because 2960821 - 2¹ = 2960819 is a prime.

Together with 2960819, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2960821.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2960801) 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, 1480410 + 1480411.

It is an arithmetic number, because the mean of its divisors is an integer number (1480411).

2^2960821 is an apocalyptic number.

It is an amenable number.

2960821 is a deficient number, since it is larger than the sum of its proper divisors (1).

2960821 is an equidigital number, since it uses as much as digits as its factorization.

2960821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2960821 is about 1720.7036351446. The cubic root of 2960821 is about 143.5943605972.

The spelling of 2960821 in words is "two million, nine hundred sixty thousand, eight hundred twenty-one".