204970 has 16 divisors (see below), whose sum is σ = 374400. Its totient is φ = 80784.

The previous prime is 204947. The next prime is 204973. The reversal of 204970 is 79402.

It is not an unprimeable number, because it can be changed into a prime (204973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 931 + ... + 1129.

It is an arithmetic number, because the mean of its divisors is an integer number (23400).

2²⁰⁴⁹⁷⁰ is an apocalyptic number.

204970 is a deficient number, since it is larger than the sum of its proper divisors (169430).

204970 is a wasteful number, since it uses less digits than its factorization.

204970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 204970 is about 452.7361262369. The cubic root of 204970 is about 58.9608089820.

The spelling of 204970 in words is "two hundred four thousand, nine hundred seventy".