204878467 has 2 divisors, whose sum is σ = 204878468. Its totient is φ = 204878466.

The previous prime is 204878437. The next prime is 204878483. The reversal of 204878467 is 764878402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204878467 - 2¹⁹ = 204354179 is a prime.

It is not a weakly prime, because it can be changed into another prime (204878437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102439233 + 102439234.

It is an arithmetic number, because the mean of its divisors is an integer number (102439234).

Almost surely, 2^204878467 is an apocalyptic number.

204878467 is a deficient number, since it is larger than the sum of its proper divisors (1).

204878467 is an equidigital number, since it uses as much as digits as its factorization.

204878467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 602112, while the sum is 46.

The square root of 204878467 is about 14313.5763176084. The cubic root of 204878467 is about 589.5203100920.

The spelling of 204878467 in words is "two hundred four million, eight hundred seventy-eight thousand, four hundred sixty-seven".