659653 has 2 divisors, whose sum is σ = 659654. Its totient is φ = 659652.

The previous prime is 659639. The next prime is 659657. The reversal of 659653 is 356956.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381924 + 277729 = 618^2 + 527^2 .

It is a cyclic number.

It is not a de Polignac number, because 659653 - 2⁵ = 659621 is a prime.

659653 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (659657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329826 + 329827.

It is an arithmetic number, because the mean of its divisors is an integer number (329827).

2⁶⁵⁹⁶⁵³ is an apocalyptic number.

It is an amenable number.

659653 is a deficient number, since it is larger than the sum of its proper divisors (1).

659653 is an equidigital number, since it uses as much as digits as its factorization.

659653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24300, while the sum is 34.

The square root of 659653 is about 812.1902486487. The cubic root of 659653 is about 87.0506157221.

The spelling of 659653 in words is "six hundred fifty-nine thousand, six hundred fifty-three".