656830 has 16 divisors (see below), whose sum is σ = 1244880. Its totient is φ = 248832.

The previous prime is 656819. The next prime is 656833. The reversal of 656830 is 38656.

656830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656833) 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, 1539 + ... + 1918.

It is an arithmetic number, because the mean of its divisors is an integer number (77805).

2⁶⁵⁶⁸³⁰ is an apocalyptic number.

656830 is a deficient number, since it is larger than the sum of its proper divisors (588050).

656830 is a wasteful number, since it uses less digits than its factorization.

656830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 656830 is about 810.4504920105. The cubic root of 656830 is about 86.9262597958.

The spelling of 656830 in words is "six hundred fifty-six thousand, eight hundred thirty".