204168087 has 16 divisors (see below), whose sum is σ = 302765280. Its totient is φ = 135979776.

The previous prime is 204168073. The next prime is 204168089. The reversal of 204168087 is 780861402.

It is not a de Polignac number, because 204168087 - 2⁴ = 204168071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204168089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30343 + ... + 36455.

It is an arithmetic number, because the mean of its divisors is an integer number (18922830).

Almost surely, 2^204168087 is an apocalyptic number.

204168087 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

204168087 is a deficient number, since it is larger than the sum of its proper divisors (98597193).

204168087 is a wasteful number, since it uses less digits than its factorization.

204168087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7359 (or 7353 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 204168087 is about 14288.7398674621. The cubic root of 204168087 is about 588.8381684663.

The spelling of 204168087 in words is "two hundred four million, one hundred sixty-eight thousand, eighty-seven".