617249 has 2 divisors, whose sum is σ = 617250. Its totient is φ = 617248.

The previous prime is 617237. The next prime is 617257. The reversal of 617249 is 942716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 616225 + 1024 = 785^2 + 32^2 .

It is a cyclic number.

It is not a de Polignac number, because 617249 - 2⁴ = 617233 is a prime.

It is not a weakly prime, because it can be changed into another prime (617269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308624 + 308625.

It is an arithmetic number, because the mean of its divisors is an integer number (308625).

2⁶¹⁷²⁴⁹ is an apocalyptic number.

It is an amenable number.

617249 is a deficient number, since it is larger than the sum of its proper divisors (1).

617249 is an equidigital number, since it uses as much as digits as its factorization.

617249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 29.

The square root of 617249 is about 785.6519585669. The cubic root of 617249 is about 85.1438854786.

The spelling of 617249 in words is "six hundred seventeen thousand, two hundred forty-nine".