204770247 has 32 divisors (see below), whose sum is σ = 316500480. Its totient is φ = 116565120.

The previous prime is 204770243. The next prime is 204770263. The reversal of 204770247 is 742077402.

204770247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204770247 - 2² = 204770243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204770243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32518 + ... + 38300.

It is an arithmetic number, because the mean of its divisors is an integer number (9890640).

Almost surely, 2^204770247 is an apocalyptic number.

204770247 is a deficient number, since it is larger than the sum of its proper divisors (111730233).

204770247 is a wasteful number, since it uses less digits than its factorization.

204770247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5863.

The product of its (nonzero) digits is 21952, while the sum is 33.

The square root of 204770247 is about 14309.7954912011. The cubic root of 204770247 is about 589.4164938716.

The spelling of 204770247 in words is "two hundred four million, seven hundred seventy thousand, two hundred forty-seven".