2857020841 has 2 divisors, whose sum is σ = 2857020842. Its totient is φ = 2857020840.

The previous prime is 2857020839. The next prime is 2857020857. The reversal of 2857020841 is 1480207582.

2857020841 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., 1921945600 + 935075241 = 43840^2 + 30579^2 .

It is a cyclic number.

It is not a de Polignac number, because 2857020841 - 2¹ = 2857020839 is a prime.

Together with 2857020839, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2857020841.

It is not a weakly prime, because it can be changed into another prime (2857020821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1428510420 + 1428510421.

It is an arithmetic number, because the mean of its divisors is an integer number (1428510421).

Almost surely, 2^2857020841 is an apocalyptic number.

It is an amenable number.

2857020841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2857020841 is an equidigital number, since it uses as much as digits as its factorization.

2857020841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 2857020841 is about 53451.1070137935. The cubic root of 2857020841 is about 1418.9632121465.

The spelling of 2857020841 in words is "two billion, eight hundred fifty-seven million, twenty thousand, eight hundred forty-one".