2869823 has 4 divisors (see below), whose sum is σ = 3130728. Its totient is φ = 2608920.

The previous prime is 2869813. The next prime is 2869837. The reversal of 2869823 is 3289682.

It is a happy number.

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 2869823 - 2⁴ = 2869807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2869813) 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, 130436 + ... + 130457.

It is an arithmetic number, because the mean of its divisors is an integer number (782682).

2^2869823 is an apocalyptic number.

2869823 is a deficient number, since it is larger than the sum of its proper divisors (260905).

2869823 is a wasteful number, since it uses less digits than its factorization.

2869823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260904.

The product of its digits is 41472, while the sum is 38.

The square root of 2869823 is about 1694.0551939060. The cubic root of 2869823 is about 142.1079487303.

The spelling of 2869823 in words is "two million, eight hundred sixty-nine thousand, eight hundred twenty-three".