204871953 has 16 divisors (see below), whose sum is σ = 320918976. Its totient is φ = 114613440.

The previous prime is 204871951. The next prime is 204871967. The reversal of 204871953 is 359178402.

It is not a de Polignac number, because 204871953 - 2¹ = 204871951 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (204871951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238350 + ... + 239207.

It is an arithmetic number, because the mean of its divisors is an integer number (20057436).

Almost surely, 2^204871953 is an apocalyptic number.

It is an amenable number.

204871953 is a deficient number, since it is larger than the sum of its proper divisors (116047023).

204871953 is a wasteful number, since it uses less digits than its factorization.

204871953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477584.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 204871953 is about 14313.3487695927. The cubic root of 204871953 is about 589.5140621994.

The spelling of 204871953 in words is "two hundred four million, eight hundred seventy-one thousand, nine hundred fifty-three".