205969795 has 4 divisors (see below), whose sum is σ = 247163760. Its totient is φ = 164775832.

The previous prime is 205969789. The next prime is 205969811. The reversal of 205969795 is 597969502.

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

It is a cyclic number.

It is not a de Polignac number, because 205969795 - 2⁷ = 205969667 is a prime.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20596975 + ... + 20596984.

It is an arithmetic number, because the mean of its divisors is an integer number (61790940).

Almost surely, 2^205969795 is an apocalyptic number.

205969795 is a deficient number, since it is larger than the sum of its proper divisors (41193965).

205969795 is an equidigital number, since it uses as much as digits as its factorization.

205969795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41193964.

The product of its (nonzero) digits is 1530900, while the sum is 52.

The square root of 205969795 is about 14351.6478147981. The cubic root of 205969795 is about 590.5651914280.

The spelling of 205969795 in words is "two hundred five million, nine hundred sixty-nine thousand, seven hundred ninety-five".