285070897 has 2 divisors, whose sum is σ = 285070898. Its totient is φ = 285070896.

The previous prime is 285070871. The next prime is 285070939. The reversal of 285070897 is 798070582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240994576 + 44076321 = 15524^2 + 6639^2 .

It is a cyclic number.

It is not a de Polignac number, because 285070897 - 2²⁷ = 150853169 is a prime.

It is not a weakly prime, because it can be changed into another prime (285079897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142535448 + 142535449.

It is an arithmetic number, because the mean of its divisors is an integer number (142535449).

Almost surely, 2^285070897 is an apocalyptic number.

It is an amenable number.

285070897 is a deficient number, since it is larger than the sum of its proper divisors (1).

285070897 is an equidigital number, since it uses as much as digits as its factorization.

285070897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 285070897 is about 16884.0426734831. The cubic root of 285070897 is about 658.1390006693.

The spelling of 285070897 in words is "two hundred eighty-five million, seventy thousand, eight hundred ninety-seven".