656411 has 8 divisors (see below), whose sum is σ = 760320. Its totient is φ = 555048.

The previous prime is 656407. The next prime is 656423. The reversal of 656411 is 114656.

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

It is a cyclic number.

It is not a de Polignac number, because 656411 - 2² = 656407 is a prime.

It is a super-4 number, since 4×656411⁴ (a number of 24 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656471) 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, 41 + ... + 1146.

It is an arithmetic number, because the mean of its divisors is an integer number (95040).

2⁶⁵⁶⁴¹¹ is an apocalyptic number.

656411 is a deficient number, since it is larger than the sum of its proper divisors (103909).

656411 is a wasteful number, since it uses less digits than its factorization.

656411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273.

The product of its digits is 720, while the sum is 23.

The square root of 656411 is about 810.1919525643. The cubic root of 656411 is about 86.9077720844.

The spelling of 656411 in words is "six hundred fifty-six thousand, four hundred eleven".