656468 has 6 divisors (see below), whose sum is σ = 1148826. Its totient is φ = 328232.

The previous prime is 656459. The next prime is 656471. The reversal of 656468 is 864656.

It can be written as a sum of positive squares in only one way, i.e., 611524 + 44944 = 782^2 + 212^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82055 + ... + 82062.

It is an arithmetic number, because the mean of its divisors is an integer number (191471).

2⁶⁵⁶⁴⁶⁸ is an apocalyptic number.

It is an amenable number.

656468 is a deficient number, since it is larger than the sum of its proper divisors (492358).

656468 is a wasteful number, since it uses less digits than its factorization.

656468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164121 (or 164119 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 656468 is about 810.2271286497. The cubic root of 656468 is about 86.9102875814.

The spelling of 656468 in words is "six hundred fifty-six thousand, four hundred sixty-eight".