205077493 has 8 divisors (see below), whose sum is σ = 211867136. Its totient is φ = 198298800.

The previous prime is 205077463. The next prime is 205077527. The reversal of 205077493 is 394770502.

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

It is a cyclic number.

It is not a de Polignac number, because 205077493 - 2¹⁷ = 204946421 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 (205077463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54955 + ... + 58567.

It is an arithmetic number, because the mean of its divisors is an integer number (26483392).

Almost surely, 2^205077493 is an apocalyptic number.

It is an amenable number.

205077493 is a deficient number, since it is larger than the sum of its proper divisors (6789643).

205077493 is a wasteful number, since it uses less digits than its factorization.

205077493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5475.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 205077493 is about 14320.5269805269. The cubic root of 205077493 is about 589.7111417571.

The spelling of 205077493 in words is "two hundred five million, seventy-seven thousand, four hundred ninety-three".