6654839 has 8 divisors (see below), whose sum is σ = 6819120. Its totient is φ = 6492096.

The previous prime is 6654829. The next prime is 6654847. The reversal of 6654839 is 9384566.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6654839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6654796 and 6654805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6654829) 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, 16067 + ... + 16475.

It is an arithmetic number, because the mean of its divisors is an integer number (852390).

Almost surely, 2^6654839 is an apocalyptic number.

6654839 is a deficient number, since it is larger than the sum of its proper divisors (164281).

6654839 is a wasteful number, since it uses less digits than its factorization.

6654839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769.

The product of its digits is 155520, while the sum is 41.

The square root of 6654839 is about 2579.6974628820. The cubic root of 6654839 is about 188.0958372840.

The spelling of 6654839 in words is "six million, six hundred fifty-four thousand, eight hundred thirty-nine".