68205329 has 6 divisors (see below), whose sum is σ = 69519366. Its totient is φ = 66915680.

The previous prime is 68205317. The next prime is 68205337. The reversal of 68205329 is 92350286.

It can be written as a sum of positive squares in 3 ways, for example, as 42601729 + 25603600 = 6527^2 + 5060^2 .

It is not a de Polignac number, because 68205329 - 2⁸ = 68205073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68205349) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9332 + ... + 14949.

It is an arithmetic number, because the mean of its divisors is an integer number (11586561).

Almost surely, 2^68205329 is an apocalyptic number.

It is an amenable number.

68205329 is a deficient number, since it is larger than the sum of its proper divisors (1314037).

68205329 is an equidigital number, since it uses as much as digits as its factorization.

68205329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24387 (or 24334 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 68205329 is about 8258.6517664810. The cubic root of 68205329 is about 408.5759219715.

The spelling of 68205329 in words is "sixty-eight million, two hundred five thousand, three hundred twenty-nine".