613288 has 16 divisors (see below), whose sum is σ = 1238580. Its totient is φ = 283008.

The previous prime is 613279. The next prime is 613289. The reversal of 613288 is 882316.

613288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 611524 + 1764 = 782^2 + 42^2 .

It is a super-2 number, since 2×613288² = 752244341888, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (613289) 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, 2845 + ... + 3052.

2⁶¹³²⁸⁸ is an apocalyptic number.

It is an amenable number.

613288 is an abundant number, since it is smaller than the sum of its proper divisors (625292).

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

613288 is a wasteful number, since it uses less digits than its factorization.

613288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5916 (or 5912 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 613288 is about 783.1270650412. The cubic root of 613288 is about 84.9613665263.

Adding to 613288 its sum of digits (28), we get a palindrome (613316).

The spelling of 613288 in words is "six hundred thirteen thousand, two hundred eighty-eight".