204906077 has 2 divisors, whose sum is σ = 204906078. Its totient is φ = 204906076.

The previous prime is 204906061. The next prime is 204906131. The reversal of 204906077 is 770609402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110796676 + 94109401 = 10526^2 + 9701^2 .

It is a cyclic number.

It is not a de Polignac number, because 204906077 - 2⁴ = 204906061 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204906017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102453038 + 102453039.

It is an arithmetic number, because the mean of its divisors is an integer number (102453039).

Almost surely, 2^204906077 is an apocalyptic number.

It is an amenable number.

204906077 is a deficient number, since it is larger than the sum of its proper divisors (1).

204906077 is an equidigital number, since it uses as much as digits as its factorization.

204906077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 204906077 is about 14314.5407540724. The cubic root of 204906077 is about 589.5467907090.

The spelling of 204906077 in words is "two hundred four million, nine hundred six thousand, seventy-seven".