613108728 has 48 divisors (see below), whose sum is σ = 1661646480. Its totient is φ = 204228864.

The previous prime is 613108693. The next prime is 613108747. The reversal of 613108728 is 827801316.

613108728 is a `hidden beast` number, since 613 + 10 + 8 + 7 + 28 = 666.

613108728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 613108692 and 613108701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188976 + ... + 192192.

It is an arithmetic number, because the mean of its divisors is an integer number (34617635).

Almost surely, 2^613108728 is an apocalyptic number.

It is an amenable number.

613108728 is an abundant number, since it is smaller than the sum of its proper divisors (1048537752).

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

613108728 is a wasteful number, since it uses less digits than its factorization.

613108728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5876 (or 5869 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 613108728 is about 24761.0324502029. The cubic root of 613108728 is about 849.5308728482.

The spelling of 613108728 in words is "six hundred thirteen million, one hundred eight thousand, seven hundred twenty-eight".