204231967 has 4 divisors (see below), whose sum is σ = 208577376. Its totient is φ = 199886560.

The previous prime is 204231959. The next prime is 204231977. The reversal of 204231967 is 769132402.

204231967 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 769132402 = 2 ⋅384566201.

It is a cyclic number.

It is not a de Polignac number, because 204231967 - 2³ = 204231959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204231917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2172634 + ... + 2172727.

It is an arithmetic number, because the mean of its divisors is an integer number (52144344).

Almost surely, 2^204231967 is an apocalyptic number.

204231967 is a deficient number, since it is larger than the sum of its proper divisors (4345409).

204231967 is an equidigital number, since it uses as much as digits as its factorization.

204231967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4345408.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 204231967 is about 14290.9750192210. The cubic root of 204231967 is about 588.8995738512.

The spelling of 204231967 in words is "two hundred four million, two hundred thirty-one thousand, nine hundred sixty-seven".