613206 has 48 divisors (see below), whose sum is σ = 1535040. Its totient is φ = 174960.

The previous prime is 613199. The next prime is 613213. The reversal of 613206 is 602316.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (613199) and next prime (613213).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 613206.

It is an unprimeable 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 23 ways as a sum of consecutive naturals, for example, 3681 + ... + 3843.

It is an arithmetic number, because the mean of its divisors is an integer number (31980).

2⁶¹³²⁰⁶ is an apocalyptic number.

613206 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 613206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (767520).

613206 is an abundant number, since it is smaller than the sum of its proper divisors (921834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

613206 is a wasteful number, since it uses less digits than its factorization.

613206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 613206 is about 783.0747090795. The cubic root of 613206 is about 84.9575797559.

The spelling of 613206 in words is "six hundred thirteen thousand, two hundred six".