2297730065 has 4 divisors (see below), whose sum is σ = 2757276084. Its totient is φ = 1838184048.

The previous prime is 2297730049. The next prime is 2297730079. The reversal of 2297730065 is 5600377922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 866772481 + 1430957584 = 29441^2 + 37828^2 .

It is a cyclic number.

It is not a de Polignac number, because 2297730065 - 2⁴ = 2297730049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229773002 + ... + 229773011.

It is an arithmetic number, because the mean of its divisors is an integer number (689319021).

Almost surely, 2^2297730065 is an apocalyptic number.

It is an amenable number.

2297730065 is a deficient number, since it is larger than the sum of its proper divisors (459546019).

2297730065 is an equidigital number, since it uses as much as digits as its factorization.

2297730065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459546018.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 2297730065 is about 47934.6436828313. The cubic root of 2297730065 is about 1319.5717284108.

The spelling of 2297730065 in words is "two billion, two hundred ninety-seven million, seven hundred thirty thousand, sixty-five".