613388 has 12 divisors (see below), whose sum is σ = 1086120. Its totient is φ = 303072.

The previous prime is 613381. The next prime is 613421. The reversal of 613388 is 883316.

It is a self number, because there is not a number n which added to its sum of digits gives 613388.

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 3 ways as a sum of consecutive naturals, for example, 506 + ... + 1217.

It is an arithmetic number, because the mean of its divisors is an integer number (90510).

2⁶¹³³⁸⁸ is an apocalyptic number.

It is an amenable number.

613388 is a deficient number, since it is larger than the sum of its proper divisors (472732).

613388 is a wasteful number, since it uses less digits than its factorization.

613388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816 (or 1814 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 613388 is about 783.1909090381. The cubic root of 613388 is about 84.9659840823.

It can be divided in two parts, 613 and 388, that added together give a palindrome (1001).

The spelling of 613388 in words is "six hundred thirteen thousand, three hundred eighty-eight".