2658839 has 8 divisors (see below), whose sum is σ = 2764800. Its totient is φ = 2554200.

The previous prime is 2658833. The next prime is 2658847. The reversal of 2658839 is 9388562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2658839 - 2⁸ = 2658583 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2658796 and 2658805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2658833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5954 + ... + 6384.

It is an arithmetic number, because the mean of its divisors is an integer number (345600).

2^2658839 is an apocalyptic number.

2658839 is a deficient number, since it is larger than the sum of its proper divisors (105961).

2658839 is a wasteful number, since it uses less digits than its factorization.

2658839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661.

The product of its digits is 103680, while the sum is 41.

The square root of 2658839 is about 1630.5946767974. The cubic root of 2658839 is about 138.5364368677.

The spelling of 2658839 in words is "two million, six hundred fifty-eight thousand, eight hundred thirty-nine".