611797 has 4 divisors (see below), whose sum is σ = 613900. Its totient is φ = 609696.

The previous prime is 611791. The next prime is 611801. The reversal of 611797 is 797116.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 194481 + 417316 = 441^2 + 646^2 .

It is a cyclic number.

It is not a de Polignac number, because 611797 - 2¹⁹ = 87509 is a prime.

It is a Duffinian 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.

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, 528 + ... + 1225.

It is an arithmetic number, because the mean of its divisors is an integer number (153475).

2⁶¹¹⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

611797 is a deficient number, since it is larger than the sum of its proper divisors (2103).

611797 is a wasteful number, since it uses less digits than its factorization.

611797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102.

The product of its digits is 2646, while the sum is 31.

The square root of 611797 is about 782.1745329528. The cubic root of 611797 is about 84.8924591539.

The spelling of 611797 in words is "six hundred eleven thousand, seven hundred ninety-seven".