2665834 has 4 divisors (see below), whose sum is σ = 3998754. Its totient is φ = 1332916.

The previous prime is 2665823. The next prime is 2665841. The reversal of 2665834 is 4385662.

It is a happy number.

2665834 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, and also an emirpimes, since its reverse is a distinct semiprime: 4385662 = 2 ⋅2192831.

It can be written as a sum of positive squares in only one way, i.e., 2030625 + 635209 = 1425^2 + 797^2 .

It is a d-powerful number, because it can be written as 2²¹ + 6² + 6³ + 5³ + 8⁵ + 3¹² + 4⁶ .

It is a self number, because there is not a number n which added to its sum of digits gives 2665834.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 666457 + ... + 666460.

2^2665834 is an apocalyptic number.

2665834 is a deficient number, since it is larger than the sum of its proper divisors (1332920).

2665834 is a wasteful number, since it uses less digits than its factorization.

2665834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332919.

The product of its digits is 34560, while the sum is 34.

The square root of 2665834 is about 1632.7381908928. The cubic root of 2665834 is about 138.6578198971.

The spelling of 2665834 in words is "two million, six hundred sixty-five thousand, eight hundred thirty-four".