2819065 has 4 divisors (see below), whose sum is σ = 3382884. Its totient is φ = 2255248.

The previous prime is 2819053. The next prime is 2819099. The reversal of 2819065 is 5609182.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5609182 = 2 ⋅2804591.

It can be written as a sum of positive squares in 2 ways, for example, as 595984 + 2223081 = 772^2 + 1491^2 .

It is a cyclic number.

It is not a de Polignac number, because 2819065 - 2⁹ = 2818553 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 281902 + ... + 281911.

It is an arithmetic number, because the mean of its divisors is an integer number (845721).

2^2819065 is an apocalyptic number.

It is an amenable number.

2819065 is a deficient number, since it is larger than the sum of its proper divisors (563819).

2819065 is an equidigital number, since it uses as much as digits as its factorization.

2819065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563818.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 2819065 is about 1679.0071470962. The cubic root of 2819065 is about 141.2651483479.

The spelling of 2819065 in words is "two million, eight hundred nineteen thousand, sixty-five".