238800077 has 2 divisors, whose sum is σ = 238800078. Its totient is φ = 238800076.

The previous prime is 238800073. The next prime is 238800097. The reversal of 238800077 is 770008832.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198781801 + 40018276 = 14099^2 + 6326^2 .

It is a cyclic number.

It is not a de Polignac number, because 238800077 - 2² = 238800073 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238800073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119400038 + 119400039.

It is an arithmetic number, because the mean of its divisors is an integer number (119400039).

Almost surely, 2^238800077 is an apocalyptic number.

It is an amenable number.

238800077 is a deficient number, since it is larger than the sum of its proper divisors (1).

238800077 is an equidigital number, since it uses as much as digits as its factorization.

238800077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 238800077 is about 15453.1575090659. The cubic root of 238800077 is about 620.4090926534.

The spelling of 238800077 in words is "two hundred thirty-eight million, eight hundred thousand, seventy-seven".