205772894 has 4 divisors (see below), whose sum is σ = 308659344. Its totient is φ = 102886446.

The previous prime is 205772867. The next prime is 205772939. The reversal of 205772894 is 498277502.

205772894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51443222 + ... + 51443225.

It is an arithmetic number, because the mean of its divisors is an integer number (77164836).

Almost surely, 2^205772894 is an apocalyptic number.

205772894 is a deficient number, since it is larger than the sum of its proper divisors (102886450).

205772894 is a wasteful number, since it uses less digits than its factorization.

205772894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102886449.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 205772894 is about 14344.7863002556. The cubic root of 205772894 is about 590.3769438409.

The spelling of 205772894 in words is "two hundred five million, seven hundred seventy-two thousand, eight hundred ninety-four".