205072773 has 8 divisors (see below), whose sum is σ = 274520736. Its totient is φ = 136170000.

The previous prime is 205072687. The next prime is 205072783. The reversal of 205072773 is 377270502.

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

It is not a de Polignac number, because 205072773 - 2⁹ = 205072261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205072783) 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, 135418 + ... + 136923.

It is an arithmetic number, because the mean of its divisors is an integer number (34315092).

Almost surely, 2^205072773 is an apocalyptic number.

It is an amenable number.

205072773 is a deficient number, since it is larger than the sum of its proper divisors (69447963).

205072773 is a wasteful number, since it uses less digits than its factorization.

205072773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272595.

The product of its (nonzero) digits is 20580, while the sum is 33.

The square root of 205072773 is about 14320.3621811741. The cubic root of 205072773 is about 589.7066175194.

The spelling of 205072773 in words is "two hundred five million, seventy-two thousand, seven hundred seventy-three".