613386 has 32 divisors (see below), whose sum is σ = 1404480. Its totient is φ = 198288.

The previous prime is 613381. The next prime is 613421. The reversal of 613386 is 683316.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (613381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1845 + ... + 2151.

It is an arithmetic number, because the mean of its divisors is an integer number (43890).

2⁶¹³³⁸⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 613386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (702240).

613386 is an abundant number, since it is smaller than the sum of its proper divisors (791094).

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

613386 is a wasteful number, since it uses less digits than its factorization.

613386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 349 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 613386 is about 783.1896322092. The cubic root of 613386 is about 84.9658917361.

It can be divided in two parts, 613 and 386, that added together give a palindrome (999).

The spelling of 613386 in words is "six hundred thirteen thousand, three hundred eighty-six".