659983223 has 2 divisors, whose sum is σ = 659983224. Its totient is φ = 659983222.

The previous prime is 659983213. The next prime is 659983237. The reversal of 659983223 is 322389956.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 659983223 - 2¹⁰ = 659982199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (659983213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329991611 + 329991612.

It is an arithmetic number, because the mean of its divisors is an integer number (329991612).

Almost surely, 2^659983223 is an apocalyptic number.

659983223 is a deficient number, since it is larger than the sum of its proper divisors (1).

659983223 is an equidigital number, since it uses as much as digits as its factorization.

659983223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 47.

The square root of 659983223 is about 25690.1386333356. The cubic root of 659983223 is about 870.6513917608.

The spelling of 659983223 in words is "six hundred fifty-nine million, nine hundred eighty-three thousand, two hundred twenty-three".