205328767 has 6 divisors (see below), whose sum is σ = 238851888. Its totient is φ = 175996044.

The previous prime is 205328707. The next prime is 205328891. The reversal of 205328767 is 767823502.

It is a de Polignac number, because none of the positive numbers 2^k-205328767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205328707) 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, 2095143 + ... + 2095240.

It is an arithmetic number, because the mean of its divisors is an integer number (39808648).

Almost surely, 2^205328767 is an apocalyptic number.

205328767 is a deficient number, since it is larger than the sum of its proper divisors (33523121).

205328767 is an equidigital number, since it uses as much as digits as its factorization.

205328767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190397 (or 4190390 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 205328767 is about 14329.2975054606. The cubic root of 205328767 is about 589.9518939998.

The spelling of 205328767 in words is "two hundred five million, three hundred twenty-eight thousand, seven hundred sixty-seven".