613289 has 2 divisors, whose sum is σ = 613290. Its totient is φ = 613288.

The previous prime is 613279. The next prime is 613297. The reversal of 613289 is 982316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 570025 + 43264 = 755^2 + 208^2 .

It is a cyclic number.

It is not a de Polignac number, because 613289 - 2¹⁶ = 547753 is a prime.

It is a super-2 number, since 2×613289² = 752246795042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (613219) 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, 306644 + 306645.

It is an arithmetic number, because the mean of its divisors is an integer number (306645).

2⁶¹³²⁸⁹ is an apocalyptic number.

It is an amenable number.

613289 is a deficient number, since it is larger than the sum of its proper divisors (1).

613289 is an equidigital number, since it uses as much as digits as its factorization.

613289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 613289 is about 783.1277035069. The cubic root of 613289 is about 84.9614127044.

The spelling of 613289 in words is "six hundred thirteen thousand, two hundred eighty-nine".