1936565 has 4 divisors (see below), whose sum is σ = 2323884. Its totient is φ = 1549248.

The previous prime is 1936559. The next prime is 1936579. The reversal of 1936565 is 5656391.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5656391 = 13 ⋅435107.

It can be written as a sum of positive squares in 2 ways, for example, as 1234321 + 702244 = 1111^2 + 838^2 .

It is a cyclic number.

It is not a de Polignac number, because 1936565 - 2¹⁰ = 1935541 is a prime.

It is a d-powerful number, because it can be written as 1 + 9⁵ + 3¹³ + 6 + 5³ + 6⁷ + 5⁵ .

It is a Duffinian number.

It is a congruent 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, 193652 + ... + 193661.

It is an arithmetic number, because the mean of its divisors is an integer number (580971).

2^1936565 is an apocalyptic number.

It is an amenable number.

1936565 is a deficient number, since it is larger than the sum of its proper divisors (387319).

1936565 is an equidigital number, since it uses as much as digits as its factorization.

1936565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387318.

The product of its digits is 24300, while the sum is 35.

The square root of 1936565 is about 1391.6051882628. The cubic root of 1936565 is about 124.6457168161.

The spelling of 1936565 in words is "one million, nine hundred thirty-six thousand, five hundred sixty-five".