656049 has 8 divisors (see below), whose sum is σ = 878560. Its totient is φ = 435456.

The previous prime is 656039. The next prime is 656063. The reversal of 656049 is 940656.

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

It is not a de Polignac number, because 656049 - 2¹¹ = 654001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656039) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 849 + ... + 1425.

It is an arithmetic number, because the mean of its divisors is an integer number (109820).

2⁶⁵⁶⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

656049 is a deficient number, since it is larger than the sum of its proper divisors (222511).

656049 is a wasteful number, since it uses less digits than its factorization.

656049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 656049 is about 809.9685179067. The cubic root of 656049 is about 86.8917930720.

The spelling of 656049 in words is "six hundred fifty-six thousand, forty-nine".