204734487 has 4 divisors (see below), whose sum is σ = 272979320. Its totient is φ = 136489656.

The previous prime is 204734471. The next prime is 204734489. The reversal of 204734487 is 784437402.

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

It is not a de Polignac number, because 204734487 - 2⁴ = 204734471 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 (204734489) 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, 34122412 + ... + 34122417.

It is an arithmetic number, because the mean of its divisors is an integer number (68244830).

Almost surely, 2^204734487 is an apocalyptic number.

204734487 is a deficient number, since it is larger than the sum of its proper divisors (68244833).

204734487 is an equidigital number, since it uses as much as digits as its factorization.

204734487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68244832.

The product of its (nonzero) digits is 150528, while the sum is 39.

The square root of 204734487 is about 14308.5459428972. The cubic root of 204734487 is about 589.3821810076.

The spelling of 204734487 in words is "two hundred four million, seven hundred thirty-four thousand, four hundred eighty-seven".