611489 has 4 divisors (see below), whose sum is σ = 613056. Its totient is φ = 609924.

The previous prime is 611483. The next prime is 611497. The reversal of 611489 is 984116.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-611489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332 + ... + 1154.

It is an arithmetic number, because the mean of its divisors is an integer number (153264).

2⁶¹¹⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

611489 is a deficient number, since it is larger than the sum of its proper divisors (1567).

611489 is an equidigital number, since it uses as much as digits as its factorization.

611489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566.

The product of its digits is 1728, while the sum is 29.

The square root of 611489 is about 781.9776211632. The cubic root of 611489 is about 84.8782108186.

The spelling of 611489 in words is "six hundred eleven thousand, four hundred eighty-nine".