2392865 has 4 divisors (see below), whose sum is σ = 2871444. Its totient is φ = 1914288.

The previous prime is 2392861. The next prime is 2392891. The reversal of 2392865 is 5682932.

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

It can be written as a sum of positive squares in 2 ways, for example, as 524176 + 1868689 = 724^2 + 1367^2 .

It is a cyclic number.

It is not a de Polignac number, because 2392865 - 2² = 2392861 is a prime.

It is a d-powerful number, because it can be written as 2² + 3 + 9² + 2²¹ + 8² + 6⁷ + 5⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2392861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239282 + ... + 239291.

It is an arithmetic number, because the mean of its divisors is an integer number (717861).

2^2392865 is an apocalyptic number.

It is an amenable number.

2392865 is a deficient number, since it is larger than the sum of its proper divisors (478579).

2392865 is an equidigital number, since it uses as much as digits as its factorization.

2392865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478578.

The product of its digits is 25920, while the sum is 35.

The square root of 2392865 is about 1546.8888130696. Note that the first 4 decimals coincide. The cubic root of 2392865 is about 133.7537804271.

The spelling of 2392865 in words is "two million, three hundred ninety-two thousand, eight hundred sixty-five".