660896227 has 8 divisors (see below), whose sum is σ = 668818080. Its totient is φ = 653001600.

The previous prime is 660896221. The next prime is 660896231. The reversal of 660896227 is 722698066.

It is a happy number.

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 660896227 - 2³ = 660896219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660896221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44299 + ... + 57307.

It is an arithmetic number, because the mean of its divisors is an integer number (83602260).

Almost surely, 2^660896227 is an apocalyptic number.

660896227 is a deficient number, since it is larger than the sum of its proper divisors (7921853).

660896227 is a wasteful number, since it uses less digits than its factorization.

660896227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13613.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 660896227 is about 25707.9020341995. The cubic root of 660896227 is about 871.0526857660.

The spelling of 660896227 in words is "six hundred sixty million, eight hundred ninety-six thousand, two hundred twenty-seven".