2285617897 has 2 divisors, whose sum is σ = 2285617898. Its totient is φ = 2285617896.

The previous prime is 2285617889. The next prime is 2285617907. The reversal of 2285617897 is 7987165822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2282068441 + 3549456 = 47771^2 + 1884^2 .

It is a cyclic number.

It is not a de Polignac number, because 2285617897 - 2³ = 2285617889 is a prime.

It is not a weakly prime, because it can be changed into another prime (2285612897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1142808948 + 1142808949.

It is an arithmetic number, because the mean of its divisors is an integer number (1142808949).

Almost surely, 2^2285617897 is an apocalyptic number.

It is an amenable number.

2285617897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2285617897 is an equidigital number, since it uses as much as digits as its factorization.

2285617897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 55.

The square root of 2285617897 is about 47808.1363054449. The cubic root of 2285617897 is about 1317.2489953386.

The spelling of 2285617897 in words is "two billion, two hundred eighty-five million, six hundred seventeen thousand, eight hundred ninety-seven".