2789852621 has 2 divisors, whose sum is σ = 2789852622. Its totient is φ = 2789852620.

The previous prime is 2789852617. The next prime is 2789852647. The reversal of 2789852621 is 1262589872.

2789852621 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., 2684379721 + 105472900 = 51811^2 + 10270^2 .

It is a cyclic number.

It is not a de Polignac number, because 2789852621 - 2² = 2789852617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2789852621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2789852921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394926310 + 1394926311.

It is an arithmetic number, because the mean of its divisors is an integer number (1394926311).

Almost surely, 2^2789852621 is an apocalyptic number.

It is an amenable number.

2789852621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2789852621 is an equidigital number, since it uses as much as digits as its factorization.

2789852621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 50.

The square root of 2789852621 is about 52819.0554724334. The cubic root of 2789852621 is about 1407.7550280067.

The spelling of 2789852621 in words is "two billion, seven hundred eighty-nine million, eight hundred fifty-two thousand, six hundred twenty-one".