205861802 has 16 divisors (see below), whose sum is σ = 313699392. Its totient is φ = 101300640.

The previous prime is 205861801. The next prime is 205861819. The reversal of 205861802 is 208168502.

205861802 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (205861801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116558 + ... + 118310.

It is an arithmetic number, because the mean of its divisors is an integer number (19606212).

Almost surely, 2^205861802 is an apocalyptic number.

205861802 is a deficient number, since it is larger than the sum of its proper divisors (107837590).

205861802 is a wasteful number, since it uses less digits than its factorization.

205861802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 205861802 is about 14347.8849312364. The cubic root of 205861802 is about 590.4619593718.

The spelling of 205861802 in words is "two hundred five million, eight hundred sixty-one thousand, eight hundred two".