656492 has 12 divisors (see below), whose sum is σ = 1177176. Its totient is φ = 320160.

The previous prime is 656483. The next prime is 656519. The reversal of 656492 is 294656.

It is a d-powerful number, because it can be written as 6 + 5⁷ + 4⁴ + 6⁶ + 9⁶ + 2³ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 656492.

It is an unprimeable number.

656492 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1838 + ... + 2165.

It is an arithmetic number, because the mean of its divisors is an integer number (98098).

2⁶⁵⁶⁴⁹² is an apocalyptic number.

It is an amenable number.

656492 is a deficient number, since it is larger than the sum of its proper divisors (520684).

656492 is a wasteful number, since it uses less digits than its factorization.

656492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048 (or 4046 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 656492 is about 810.2419391762. The cubic root of 656492 is about 86.9113466945.

The spelling of 656492 in words is "six hundred fifty-six thousand, four hundred ninety-two".