68660573 has 2 divisors, whose sum is σ = 68660574. Its totient is φ = 68660572.

The previous prime is 68660519. The next prime is 68660587. The reversal of 68660573 is 37506686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46963609 + 21696964 = 6853^2 + 4658^2 .

It is a cyclic number.

It is not a de Polignac number, because 68660573 - 2¹² = 68656477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68660573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68660503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34330286 + 34330287.

It is an arithmetic number, because the mean of its divisors is an integer number (34330287).

Almost surely, 2^68660573 is an apocalyptic number.

It is an amenable number.

68660573 is a deficient number, since it is larger than the sum of its proper divisors (1).

68660573 is an equidigital number, since it uses as much as digits as its factorization.

68660573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 68660573 is about 8286.1675701135. The cubic root of 68660573 is about 409.4829353372.

The spelling of 68660573 in words is "sixty-eight million, six hundred sixty thousand, five hundred seventy-three".