2888621 has 2 divisors, whose sum is σ = 2888622. Its totient is φ = 2888620.

The previous prime is 2888617. The next prime is 2888629. The reversal of 2888621 is 1268882.

2888621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2418025 + 470596 = 1555^2 + 686^2 .

It is a cyclic number.

It is not a de Polignac number, because 2888621 - 2² = 2888617 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2888629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1444310 + 1444311.

It is an arithmetic number, because the mean of its divisors is an integer number (1444311).

2^2888621 is an apocalyptic number.

It is an amenable number.

2888621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2888621 is an equidigital number, since it uses as much as digits as its factorization.

2888621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12288, while the sum is 35.

The square root of 2888621 is about 1699.5943633703. The cubic root of 2888621 is about 142.4175536213.

It can be divided in two parts, 28886 and 21, that multiplied together give a palindrome (606606).

The spelling of 2888621 in words is "two million, eight hundred eighty-eight thousand, six hundred twenty-one".