611655 has 24 divisors (see below), whose sum is σ = 1078896. Its totient is φ = 295680.

The previous prime is 611641. The next prime is 611657. The reversal of 611655 is 556116.

611655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 611655 - 2¹¹ = 609607 is a prime.

It is a zygodrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 611655.

It is not an unprimeable number, because it can be changed into a prime (611657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1647 + ... + 1983.

It is an arithmetic number, because the mean of its divisors is an integer number (44954).

2⁶¹¹⁶⁵⁵ is an apocalyptic number.

611655 is a deficient number, since it is larger than the sum of its proper divisors (467241).

611655 is a wasteful number, since it uses less digits than its factorization.

611655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 356 counting only the distinct ones).

The product of its digits is 900, while the sum is 24.

The square root of 611655 is about 782.0837551056. The cubic root of 611655 is about 84.8858907104.

The spelling of 611655 in words is "six hundred eleven thousand, six hundred fifty-five".