2865923 has 2 divisors, whose sum is σ = 2865924. Its totient is φ = 2865922.

The previous prime is 2865917. The next prime is 2865931. The reversal of 2865923 is 3295682.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2865923 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 8² + 6⁸ + 5² + 9 + 2²⁰ + 3⁸ .

It is not a weakly prime, because it can be changed into another prime (2865913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1432961 + 1432962.

It is an arithmetic number, because the mean of its divisors is an integer number (1432962).

2^2865923 is an apocalyptic number.

2865923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2865923 is an equidigital number, since it uses as much as digits as its factorization.

2865923 is an evil number, because the sum of its binary digits is even.

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

The square root of 2865923 is about 1692.9037184672. The cubic root of 2865923 is about 142.0435461236.

It can be divided in two parts, 28659 and 23, that added together give a palindrome (28682).

The spelling of 2865923 in words is "two million, eight hundred sixty-five thousand, nine hundred twenty-three".