613308 has 12 divisors (see below), whose sum is σ = 1431080. Its totient is φ = 204432.

The previous prime is 613297. The next prime is 613337. The reversal of 613308 is 803316.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×613308² = 752293405728, which contains 22 as substring.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

613308 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 in 3 ways as a sum of consecutive naturals, for example, 25543 + ... + 25566.

2⁶¹³³⁰⁸ is an apocalyptic number.

It is an amenable number.

613308 is an abundant number, since it is smaller than the sum of its proper divisors (817772).

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

613308 is a wasteful number, since it uses less digits than its factorization.

613308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51116 (or 51114 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 613308 is about 783.1398342569. The cubic root of 613308 is about 84.9622900777.

The spelling of 613308 in words is "six hundred thirteen thousand, three hundred eight".