2785257973 has 2 divisors, whose sum is σ = 2785257974. Its totient is φ = 2785257972.

The previous prime is 2785257949. The next prime is 2785257997. The reversal of 2785257973 is 3797525872.

2785257973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (2785257949) and next prime (2785257997).

It can be written as a sum of positive squares in only one way, i.e., 1971981649 + 813276324 = 44407^2 + 28518^2 .

It is a cyclic number.

It is not a de Polignac number, because 2785257973 - 2¹³ = 2785249781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2785207973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1392628986 + 1392628987.

It is an arithmetic number, because the mean of its divisors is an integer number (1392628987).

Almost surely, 2^2785257973 is an apocalyptic number.

It is an amenable number.

2785257973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2785257973 is an equidigital number, since it uses as much as digits as its factorization.

2785257973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7408800, while the sum is 55.

The square root of 2785257973 is about 52775.5433226414. The cubic root of 2785257973 is about 1406.9817860977.

The spelling of 2785257973 in words is "two billion, seven hundred eighty-five million, two hundred fifty-seven thousand, nine hundred seventy-three".