613612 has 12 divisors (see below), whose sum is σ = 1081080. Its totient is φ = 304736.

The previous prime is 613609. The next prime is 613633. The reversal of 613612 is 216316.

It is a self number, because there is not a number n which added to its sum of digits gives 613612.

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 3 ways as a sum of consecutive naturals, for example, 288 + ... + 1144.

It is an arithmetic number, because the mean of its divisors is an integer number (90090).

2⁶¹³⁶¹² is an apocalyptic number.

It is an amenable number.

613612 is a deficient number, since it is larger than the sum of its proper divisors (467468).

613612 is a wasteful number, since it uses less digits than its factorization.

613612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040 (or 1038 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 613612 is about 783.3339007090. Note that the first 3 decimals coincide. The cubic root of 613612 is about 84.9763255867.

Adding to 613612 its reverse (216316), we get a palindrome (829928).

It can be divided in two parts, 613 and 612, that added together give a triangular number (1225 = T₄₉).

The spelling of 613612 in words is "six hundred thirteen thousand, six hundred twelve".