204008997 has 16 divisors (see below), whose sum is σ = 282240000. Its totient is φ = 130920384.

The previous prime is 204008983. The next prime is 204009017. The reversal of 204008997 is 799800402.

It is not a de Polignac number, because 204008997 - 2⁶ = 204008933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204008977) 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 15 ways as a sum of consecutive naturals, for example, 27004 + ... + 33722.

It is an arithmetic number, because the mean of its divisors is an integer number (17640000).

Almost surely, 2^204008997 is an apocalyptic number.

It is an amenable number.

204008997 is a deficient number, since it is larger than the sum of its proper divisors (78231003).

204008997 is a wasteful number, since it uses less digits than its factorization.

204008997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7100.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 204008997 is about 14283.1718116110. The cubic root of 204008997 is about 588.6851856833.

The spelling of 204008997 in words is "two hundred four million, eight thousand, nine hundred ninety-seven".