204120697 has 16 divisors (see below), whose sum is σ = 226048320. Its totient is φ = 182776000.

The previous prime is 204120691. The next prime is 204120731. The reversal of 204120697 is 796021402.

It is not a de Polignac number, because 204120697 - 2¹⁹ = 203596409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204120691) 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, 298518 + ... + 299200.

It is an arithmetic number, because the mean of its divisors is an integer number (14128020).

Almost surely, 2^204120697 is an apocalyptic number.

It is an amenable number.

204120697 is a deficient number, since it is larger than the sum of its proper divisors (21927623).

204120697 is a wasteful number, since it uses less digits than its factorization.

204120697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 204120697 is about 14287.0814724352. The cubic root of 204120697 is about 588.7926060076.

The spelling of 204120697 in words is "two hundred four million, one hundred twenty thousand, six hundred ninety-seven".