2065909597 has 4 divisors (see below), whose sum is σ = 2066422876. Its totient is φ = 2065396320.

The previous prime is 2065909583. The next prime is 2065909607. The reversal of 2065909597 is 7959095602.

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 340254916 + 1725654681 = 18446^2 + 41541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2065909597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065909567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250554 + ... + 258667.

It is an arithmetic number, because the mean of its divisors is an integer number (516605719).

Almost surely, 2^2065909597 is an apocalyptic number.

It is an amenable number.

2065909597 is a deficient number, since it is larger than the sum of its proper divisors (513279).

2065909597 is an equidigital number, since it uses as much as digits as its factorization.

2065909597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513278.

The product of its (nonzero) digits is 1530900, while the sum is 52.

The square root of 2065909597 is about 45452.2782377297. The cubic root of 2065909597 is about 1273.6118886503.

The spelling of 2065909597 in words is "two billion, sixty-five million, nine hundred nine thousand, five hundred ninety-seven".