611798 has 8 divisors (see below), whose sum is σ = 1001160. Its totient is φ = 278080.

The previous prime is 611791. The next prime is 611801. The reversal of 611798 is 897116.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611791) by changing a digit.

611798 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13883 + ... + 13926.

It is an arithmetic number, because the mean of its divisors is an integer number (125145).

2⁶¹¹⁷⁹⁸ is an apocalyptic number.

611798 is a deficient number, since it is larger than the sum of its proper divisors (389362).

611798 is a wasteful number, since it uses less digits than its factorization.

611798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27822.

The product of its digits is 3024, while the sum is 32.

The square root of 611798 is about 782.1751721961. The cubic root of 611798 is about 84.8925054069.

It can be divided in two parts, 611 and 798, that multiplied together give a triangular number (487578 = T₉₈₇).

The spelling of 611798 in words is "six hundred eleven thousand, seven hundred ninety-eight".