613628 has 6 divisors (see below), whose sum is σ = 1073856. Its totient is φ = 306812.

The previous prime is 613609. The next prime is 613633. The reversal of 613628 is 826316.

It is a junction number, because it is equal to n+sod(n) for n = 613597 and 613606.

It is a congruent number.

It is an unprimeable number.

613628 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, 76700 + ... + 76707.

It is an arithmetic number, because the mean of its divisors is an integer number (178976).

2⁶¹³⁶²⁸ is an apocalyptic number.

It is an amenable number.

613628 is a deficient number, since it is larger than the sum of its proper divisors (460228).

613628 is a wasteful number, since it uses less digits than its factorization.

613628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153411 (or 153409 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 613628 is about 783.3441134010. The cubic root of 613628 is about 84.9770641693.

The spelling of 613628 in words is "six hundred thirteen thousand, six hundred twenty-eight".