613728743 has 4 divisors (see below), whose sum is σ = 613800600. Its totient is φ = 613656888.

The previous prime is 613728733. The next prime is 613728763. The reversal of 613728743 is 347827316.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613728743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 613728743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613728733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21068 + ... + 40881.

It is an arithmetic number, because the mean of its divisors is an integer number (153450150).

Almost surely, 2^613728743 is an apocalyptic number.

613728743 is a deficient number, since it is larger than the sum of its proper divisors (71857).

613728743 is an equidigital number, since it uses as much as digits as its factorization.

613728743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71856.

The product of its digits is 169344, while the sum is 41.

The square root of 613728743 is about 24773.5492612585. The cubic root of 613728743 is about 849.8171431339.

The spelling of 613728743 in words is "six hundred thirteen million, seven hundred twenty-eight thousand, seven hundred forty-three".