613493289 has 12 divisors (see below), whose sum is σ = 916714500. Its totient is φ = 394892064.

The previous prime is 613493267. The next prime is 613493333. The reversal of 613493289 is 982394316.

It is a happy number.

613493289 is a `hidden beast` number, since 613 + 4 + 9 + 3 + 28 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 461390400 + 152102889 = 21480^2 + 12333^2 .

It is not a de Polignac number, because 613493289 - 2¹³ = 613485097 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (613423289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1175014 + ... + 1175535.

It is an arithmetic number, because the mean of its divisors is an integer number (76392875).

Almost surely, 2^613493289 is an apocalyptic number.

It is an amenable number.

613493289 is a deficient number, since it is larger than the sum of its proper divisors (303221211).

613493289 is a wasteful number, since it uses less digits than its factorization.

613493289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2350584 (or 2350581 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 613493289 is about 24768.7966805011. The cubic root of 613493289 is about 849.7084531838.

The spelling of 613493289 in words is "six hundred thirteen million, four hundred ninety-three thousand, two hundred eighty-nine".