204012077 has 2 divisors, whose sum is σ = 204012078. Its totient is φ = 204012076.

The previous prime is 204012037. The next prime is 204012089. The reversal of 204012077 is 770210402.

204012077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140873161 + 63138916 = 11869^2 + 7946^2 .

It is a cyclic number.

It is not a de Polignac number, because 204012077 - 2¹⁰ = 204011053 is a prime.

It is a super-4 number, since 4×204012077⁴ (a number of 34 digits) contains 4444 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204012037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102006038 + 102006039.

It is an arithmetic number, because the mean of its divisors is an integer number (102006039).

Almost surely, 2^204012077 is an apocalyptic number.

It is an amenable number.

204012077 is a deficient number, since it is larger than the sum of its proper divisors (1).

204012077 is an equidigital number, since it uses as much as digits as its factorization.

204012077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 204012077 is about 14283.2796303930. The cubic root of 204012077 is about 588.6881482017.

Adding to 204012077 its reverse (770210402), we get a palindrome (974222479).

The spelling of 204012077 in words is "two hundred four million, twelve thousand, seventy-seven".