611959 has 8 divisors (see below), whose sum is σ = 634032. Its totient is φ = 590400.

The previous prime is 611957. The next prime is 611969. The reversal of 611959 is 959116.

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 611959 - 2¹ = 611957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 611959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6009 + ... + 6109.

It is an arithmetic number, because the mean of its divisors is an integer number (79254).

2⁶¹¹⁹⁵⁹ is an apocalyptic number.

611959 is a deficient number, since it is larger than the sum of its proper divisors (22073).

611959 is a wasteful number, since it uses less digits than its factorization.

611959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257.

The product of its digits is 2430, while the sum is 31.

The square root of 611959 is about 782.2780835483. The cubic root of 611959 is about 84.8999514891.

The spelling of 611959 in words is "six hundred eleven thousand, nine hundred fifty-nine".