613493 has 2 divisors, whose sum is σ = 613494. Its totient is φ = 613492.

The previous prime is 613471. The next prime is 613499. The reversal of 613493 is 394316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 515524 + 97969 = 718^2 + 313^2 .

It is a cyclic number.

It is not a de Polignac number, because 613493 - 2¹² = 609397 is a prime.

It is a super-2 number, since 2×613493² = 752747322098, which contains 22 as substring.

It is a plaindrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613499) 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 as a sum of consecutive naturals, namely, 306746 + 306747.

It is an arithmetic number, because the mean of its divisors is an integer number (306747).

2⁶¹³⁴⁹³ is an apocalyptic number.

It is an amenable number.

613493 is a deficient number, since it is larger than the sum of its proper divisors (1).

613493 is an equidigital number, since it uses as much as digits as its factorization.

613493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 26.

The square root of 613493 is about 783.2579396342. The cubic root of 613493 is about 84.9708319759.

The spelling of 613493 in words is "six hundred thirteen thousand, four hundred ninety-three".