205790653 has 8 divisors (see below), whose sum is σ = 216756000. Its totient is φ = 194838768.

The previous prime is 205790579. The next prime is 205790657. The reversal of 205790653 is 356097502.

205790653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 205790653 - 2¹³ = 205782461 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 (205790657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49275 + ... + 53287.

It is an arithmetic number, because the mean of its divisors is an integer number (27094500).

Almost surely, 2^205790653 is an apocalyptic number.

It is an amenable number.

205790653 is a deficient number, since it is larger than the sum of its proper divisors (10965347).

205790653 is a wasteful number, since it uses less digits than its factorization.

205790653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6731.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 205790653 is about 14345.4052922878. The cubic root of 205790653 is about 590.3939272934.

The spelling of 205790653 in words is "two hundred five million, seven hundred ninety thousand, six hundred fifty-three".