613928 has 32 divisors (see below), whose sum is σ = 1387200. Its totient is φ = 248832.

The previous prime is 613903. The next prime is 613957. The reversal of 613928 is 829316.

It is a self number, because there is not a number n which added to its sum of digits gives 613928.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776 + ... + 1352.

It is an arithmetic number, because the mean of its divisors is an integer number (43350).

2⁶¹³⁹²⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 613928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (693600).

613928 is an abundant number, since it is smaller than the sum of its proper divisors (773272).

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

613928 is a wasteful number, since it uses less digits than its factorization.

613928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609 (or 605 counting only the distinct ones).

The product of its digits is 2592, while the sum is 29.

The square root of 613928 is about 783.5355767290. The cubic root of 613928 is about 84.9909102160.

The spelling of 613928 in words is "six hundred thirteen thousand, nine hundred twenty-eight".