2365863 has 4 divisors (see below), whose sum is σ = 3154488. Its totient is φ = 1577240.

The previous prime is 2365859. The next prime is 2365879. The reversal of 2365863 is 3685632.

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 2365863 - 2² = 2365859 is a prime.

It is a d-powerful number, because it can be written as 2¹⁶ + 3⁷ + 6⁶ + 5⁸ + 8⁴ + 6⁸ + 3¹¹ .

It is a D-number.

2365863 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2365963) 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, 394308 + ... + 394313.

It is an arithmetic number, because the mean of its divisors is an integer number (788622).

2^2365863 is an apocalyptic number.

2365863 is a deficient number, since it is larger than the sum of its proper divisors (788625).

2365863 is an equidigital number, since it uses as much as digits as its factorization.

2365863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788624.

The product of its digits is 25920, while the sum is 33.

The square root of 2365863 is about 1538.1362098332. The cubic root of 2365863 is about 133.2487665136.

The spelling of 2365863 in words is "two million, three hundred sixty-five thousand, eight hundred sixty-three".