613728745 has 16 divisors (see below), whose sum is σ = 846558720. Its totient is φ = 418405824.

The previous prime is 613728733. The next prime is 613728763. The reversal of 613728745 is 547827316.

It is a cyclic number.

It is not a de Polignac number, because 613728745 - 2⁷ = 613728617 is a prime.

It is an unprimeable 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 15 ways as a sum of consecutive naturals, for example, 44625 + ... + 56734.

It is an arithmetic number, because the mean of its divisors is an integer number (52909920).

Almost surely, 2^613728745 is an apocalyptic number.

It is an amenable number.

613728745 is a deficient number, since it is larger than the sum of its proper divisors (232829975).

613728745 is a wasteful number, since it uses less digits than its factorization.

613728745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101544.

The product of its digits is 282240, while the sum is 43.

The square root of 613728745 is about 24773.5493016241. The cubic root of 613728745 is about 849.8171440570.

The spelling of 613728745 in words is "six hundred thirteen million, seven hundred twenty-eight thousand, seven hundred forty-five".