613573 has 2 divisors, whose sum is σ = 613574. Its totient is φ = 613572.

The previous prime is 613559. The next prime is 613577. The reversal of 613573 is 375316.

It is a happy number.

613573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 613089 + 484 = 783^2 + 22^2 .

It is a cyclic number.

It is not a de Polignac number, because 613573 - 2⁹ = 613061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306786 + 306787.

It is an arithmetic number, because the mean of its divisors is an integer number (306787).

2⁶¹³⁵⁷³ is an apocalyptic number.

It is an amenable number.

613573 is a deficient number, since it is larger than the sum of its proper divisors (1).

613573 is an equidigital number, since it uses as much as digits as its factorization.

613573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 25.

The square root of 613573 is about 783.3090067145. The cubic root of 613573 is about 84.9745252379.

Adding to 613573 its reverse (375316), we get a palindrome (988889).

The spelling of 613573 in words is "six hundred thirteen thousand, five hundred seventy-three".