2065761397 has 4 divisors (see below), whose sum is σ = 2360870176. Its totient is φ = 1770652620.

The previous prime is 2065761391. The next prime is 2065761419. The reversal of 2065761397 is 7931675602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2065761397 - 2¹⁵ = 2065728629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065761391) 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, 147554379 + ... + 147554392.

It is an arithmetic number, because the mean of its divisors is an integer number (590217544).

Almost surely, 2^2065761397 is an apocalyptic number.

It is an amenable number.

2065761397 is a deficient number, since it is larger than the sum of its proper divisors (295108779).

2065761397 is an equidigital number, since it uses as much as digits as its factorization.

2065761397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295108778.

The product of its (nonzero) digits is 476280, while the sum is 46.

The square root of 2065761397 is about 45450.6479271748. The cubic root of 2065761397 is about 1273.5814333332.

The spelling of 2065761397 in words is "two billion, sixty-five million, seven hundred sixty-one thousand, three hundred ninety-seven".