675257217 has 4 divisors (see below), whose sum is σ = 900342960. Its totient is φ = 450171476.

The previous prime is 675257213. The next prime is 675257237. The reversal of 675257217 is 712752576.

675257217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 675257217 - 2² = 675257213 is a prime.

It is a super-2 number, since 2×675257217² = 911944618221170178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (675257213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112542867 + ... + 112542872.

It is an arithmetic number, because the mean of its divisors is an integer number (225085740).

Almost surely, 2^675257217 is an apocalyptic number.

It is an amenable number.

675257217 is a deficient number, since it is larger than the sum of its proper divisors (225085743).

675257217 is a wasteful number, since it uses less digits than its factorization.

675257217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225085742.

The product of its digits is 205800, while the sum is 42.

The square root of 675257217 is about 25985.7117855178. The cubic root of 675257217 is about 877.3167305835.

The spelling of 675257217 in words is "six hundred seventy-five million, two hundred fifty-seven thousand, two hundred seventeen".