613308684 has 12 divisors (see below), whose sum is σ = 1431053624. Its totient is φ = 204436224.

The previous prime is 613308673. The next prime is 613308691. The reversal of 613308684 is 486803316.

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

It is a super-2 number, since 2×613308684² = 752295083739623712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25554517 + ... + 25554540.

Almost surely, 2^613308684 is an apocalyptic number.

It is an amenable number.

613308684 is an abundant number, since it is smaller than the sum of its proper divisors (817744940).

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

613308684 is a wasteful number, since it uses less digits than its factorization.

613308684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51109064 (or 51109062 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 613308684 is about 24765.0698363643. The cubic root of 613308684 is about 849.6232166279.

The spelling of 613308684 in words is "six hundred thirteen million, three hundred eight thousand, six hundred eighty-four".