2804740621 has 2 divisors, whose sum is σ = 2804740622. Its totient is φ = 2804740620.

The previous prime is 2804740607. The next prime is 2804740691. The reversal of 2804740621 is 1260474082.

It is a happy number.

2804740621 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., 2589384996 + 215355625 = 50886^2 + 14675^2 .

It is a cyclic number.

It is not a de Polignac number, because 2804740621 - 2⁹ = 2804740109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2804740691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402370310 + 1402370311.

It is an arithmetic number, because the mean of its divisors is an integer number (1402370311).

Almost surely, 2^2804740621 is an apocalyptic number.

It is an amenable number.

2804740621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2804740621 is an equidigital number, since it uses as much as digits as its factorization.

2804740621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 2804740621 is about 52959.8019350526. The cubic root of 2804740621 is about 1410.2547401184.

The spelling of 2804740621 in words is "two billion, eight hundred four million, seven hundred forty thousand, six hundred twenty-one".