613616 has 10 divisors (see below), whose sum is σ = 1188912. Its totient is φ = 306800.

The previous prime is 613609. The next prime is 613633. The reversal of 613616 is 616316.

613616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 613591 and 613600.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 613616.

It is an unprimeable number.

613616 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19160 + ... + 19191.

2⁶¹³⁶¹⁶ is an apocalyptic number.

It is an amenable number.

613616 is a deficient number, since it is larger than the sum of its proper divisors (575296).

613616 is a wasteful number, since it uses less digits than its factorization.

613616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38359 (or 38353 counting only the distinct ones).

The product of its digits is 648, while the sum is 23.

The square root of 613616 is about 783.3364538945. The cubic root of 613616 is about 84.9765102335.

The spelling of 613616 in words is "six hundred thirteen thousand, six hundred sixteen".