12383765 has 4 divisors (see below), whose sum is σ = 14860524. Its totient is φ = 9907008.

The previous prime is 12383759. The next prime is 12383771. The reversal of 12383765 is 56738321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56738321 = 1549 ⋅36629.

It is an interprime number because it is at equal distance from previous prime (12383759) and next prime (12383771).

It can be written as a sum of positive squares in 2 ways, for example, as 5276209 + 7107556 = 2297^2 + 2666^2 .

It is a cyclic number.

It is not a de Polignac number, because 12383765 - 2¹² = 12379669 is a prime.

It is a Duffinian number.

It is a Curzon 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, 1238372 + ... + 1238381.

It is an arithmetic number, because the mean of its divisors is an integer number (3715131).

Almost surely, 2^12383765 is an apocalyptic number.

It is an amenable number.

12383765 is a deficient number, since it is larger than the sum of its proper divisors (2476759).

12383765 is an equidigital number, since it uses as much as digits as its factorization.

12383765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476758.

The product of its digits is 30240, while the sum is 35.

The square root of 12383765 is about 3519.0574022030. The cubic root of 12383765 is about 231.3578469447.

The spelling of 12383765 in words is "twelve million, three hundred eighty-three thousand, seven hundred sixty-five".