611889 has 8 divisors (see below), whose sum is σ = 829920. Its totient is φ = 400896.

The previous prime is 611887. The next prime is 611903. The reversal of 611889 is 988116.

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

It is not a de Polignac number, because 611889 - 2¹ = 611887 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 611889.

It is not an unprimeable number, because it can be changed into a prime (611887) 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, 1552 + ... + 1905.

It is an arithmetic number, because the mean of its divisors is an integer number (103740).

2⁶¹¹⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

611889 is a deficient number, since it is larger than the sum of its proper divisors (218031).

611889 is a wasteful number, since it uses less digits than its factorization.

611889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3519.

The product of its digits is 3456, while the sum is 33.

The square root of 611889 is about 782.2333411457. The cubic root of 611889 is about 84.8967142226.

The spelling of 611889 in words is "six hundred eleven thousand, eight hundred eighty-nine".