611399 has 4 divisors (see below), whose sum is σ = 615600. Its totient is φ = 607200.

The previous prime is 611393. The next prime is 611411. The reversal of 611399 is 993116.

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

It is a cyclic number.

It is not a de Polignac number, because 611399 - 2¹² = 607303 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611393) 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, 1874 + ... + 2175.

It is an arithmetic number, because the mean of its divisors is an integer number (153900).

2⁶¹¹³⁹⁹ is an apocalyptic number.

611399 is a deficient number, since it is larger than the sum of its proper divisors (4201).

611399 is a wasteful number, since it uses less digits than its factorization.

611399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200.

The product of its digits is 1458, while the sum is 29.

The square root of 611399 is about 781.9200726417. The cubic root of 611399 is about 84.8740464407.

The spelling of 611399 in words is "six hundred eleven thousand, three hundred ninety-nine".