204974929 has 4 divisors (see below), whose sum is σ = 212043060. Its totient is φ = 197906800.

The previous prime is 204974927. The next prime is 204974951. The reversal of 204974929 is 929479402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 151290000 + 53684929 = 12300^2 + 7327^2 .

It is a cyclic number.

It is not a de Polignac number, because 204974929 - 2¹ = 204974927 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204974927) 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, 3534022 + ... + 3534079.

It is an arithmetic number, because the mean of its divisors is an integer number (53010765).

Almost surely, 2^204974929 is an apocalyptic number.

204974929 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

204974929 is a deficient number, since it is larger than the sum of its proper divisors (7068131).

204974929 is an equidigital number, since it uses as much as digits as its factorization.

204974929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7068130.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 204974929 is about 14316.9455192090. The cubic root of 204974929 is about 589.6128159674.

The spelling of 204974929 in words is "two hundred four million, nine hundred seventy-four thousand, nine hundred twenty-nine".