205676913 has 8 divisors (see below), whose sum is σ = 295331008. Its totient is φ = 126570384.

The previous prime is 205676893. The next prime is 205676921. The reversal of 205676913 is 319676502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 205676913 - 2²⁵ = 172122481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 5273767 = 205676913 / (2 + 0 + 5 + 6 + 7 + 6 + 9 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205676983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2636845 + ... + 2636922.

It is an arithmetic number, because the mean of its divisors is an integer number (36916376).

Almost surely, 2^205676913 is an apocalyptic number.

It is an amenable number.

205676913 is a deficient number, since it is larger than the sum of its proper divisors (89654095).

205676913 is a wasteful number, since it uses less digits than its factorization.

205676913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5273783.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 205676913 is about 14341.4404088292. The cubic root of 205676913 is about 590.2851374795.

The spelling of 205676913 in words is "two hundred five million, six hundred seventy-six thousand, nine hundred thirteen".