609257 has 8 divisors (see below), whose sum is σ = 672672. Its totient is φ = 547200.

The previous prime is 609253. The next prime is 609269. The reversal of 609257 is 752906.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 609257 - 2² = 609253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (609253) 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 7 ways as a sum of consecutive naturals, for example, 782 + ... + 1352.

It is an arithmetic number, because the mean of its divisors is an integer number (84084).

2⁶⁰⁹²⁵⁷ is an apocalyptic number.

It is an amenable number.

609257 is a deficient number, since it is larger than the sum of its proper divisors (63415).

609257 is a wasteful number, since it uses less digits than its factorization.

609257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 609257 is about 780.5491656520. The cubic root of 609257 is about 84.7748134082.

The spelling of 609257 in words is "six hundred nine thousand, two hundred fifty-seven".