613644043 has 8 divisors (see below), whose sum is σ = 616273776. Its totient is φ = 611020800.

The previous prime is 613644029. The next prime is 613644049. The reversal of 613644043 is 340446316.

It is a happy number.

613644043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 613644043 - 2⁵ = 613644011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 613643996 and 613644014.

It is not an unprimeable number, because it can be changed into a prime (613644049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282883 + ... + 285043.

It is an arithmetic number, because the mean of its divisors is an integer number (77034222).

Almost surely, 2^613644043 is an apocalyptic number.

613644043 is a deficient number, since it is larger than the sum of its proper divisors (2629733).

613644043 is a wasteful number, since it uses less digits than its factorization.

613644043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 613644043 is about 24771.8397177117. The cubic root of 613644043 is about 849.7780472389.

The spelling of 613644043 in words is "six hundred thirteen million, six hundred forty-four thousand, forty-three".