659493073 has 2 divisors, whose sum is σ = 659493074. Its totient is φ = 659493072.

The previous prime is 659493071. The next prime is 659493083. The reversal of 659493073 is 370394956.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 614643264 + 44849809 = 24792^2 + 6697^2 .

It is a cyclic number.

It is not a de Polignac number, because 659493073 - 2¹ = 659493071 is a prime.

It is a super-2 number, since 2×659493073² = 869862226669966658, which contains 22 as substring.

Together with 659493071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (659493071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329746536 + 329746537.

It is an arithmetic number, because the mean of its divisors is an integer number (329746537).

Almost surely, 2^659493073 is an apocalyptic number.

It is an amenable number.

659493073 is a deficient number, since it is larger than the sum of its proper divisors (1).

659493073 is an equidigital number, since it uses as much as digits as its factorization.

659493073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 612360, while the sum is 46.

The square root of 659493073 is about 25680.5972087878. The cubic root of 659493073 is about 870.4358027109.

The spelling of 659493073 in words is "six hundred fifty-nine million, four hundred ninety-three thousand, seventy-three".