2365663 has 4 divisors (see below), whose sum is σ = 2387880. Its totient is φ = 2343448.

The previous prime is 2365639. The next prime is 2365667. The reversal of 2365663 is 3665632.

2365663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2365663 - 2⁵ = 2365631 is a prime.

It is a super-2 number, since 2×2365663² = 11192722859138, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁷ + 3⁶ + 6² + 5⁹ + 6² + 6⁷ + 3⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2365667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10948 + ... + 11161.

It is an arithmetic number, because the mean of its divisors is an integer number (596970).

2^2365663 is an apocalyptic number.

2365663 is a deficient number, since it is larger than the sum of its proper divisors (22217).

2365663 is a wasteful number, since it uses less digits than its factorization.

2365663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22216.

The product of its digits is 19440, while the sum is 31.

The square root of 2365663 is about 1538.0711947111. The cubic root of 2365663 is about 133.2450116464.

Subtracting from 2365663 its sum of digits (31), we obtain a palindrome (2365632).

The spelling of 2365663 in words is "two million, three hundred sixty-five thousand, six hundred sixty-three".