6556830 has 32 divisors (see below), whose sum is σ = 17985024. Its totient is φ = 1498656.

The previous prime is 6556799. The next prime is 6556831. The reversal of 6556830 is 386556.

It is a junction number, because it is equal to n+sod(n) for n = 6556791 and 6556800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6556831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15402 + ... + 15821.

It is an arithmetic number, because the mean of its divisors is an integer number (562032).

Almost surely, 2^6556830 is an apocalyptic number.

6556830 is an abundant number, since it is smaller than the sum of its proper divisors (11428194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6556830 is a wasteful number, since it uses less digits than its factorization.

6556830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31240.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 6556830 is about 2560.6307816630. The cubic root of 6556830 is about 187.1678742629.

The spelling of 6556830 in words is "six million, five hundred fifty-six thousand, eight hundred thirty".