613630 has 8 divisors (see below), whose sum is σ = 1104552. Its totient is φ = 245448.

The previous prime is 613609. The next prime is 613633. The reversal of 613630 is 36316.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 613598 and 613607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613633) by changing a digit.

613630 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30672 + ... + 30691.

It is an arithmetic number, because the mean of its divisors is an integer number (138069).

2⁶¹³⁶³⁰ is an apocalyptic number.

613630 is a deficient number, since it is larger than the sum of its proper divisors (490922).

613630 is a wasteful number, since it uses less digits than its factorization.

613630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61370.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 613630 is about 783.3453899781. The cubic root of 613630 is about 84.9771564912.

Adding to 613630 its reverse (36316), we get a palindrome (649946).

The spelling of 613630 in words is "six hundred thirteen thousand, six hundred thirty".