77116201 has 2 divisors, whose sum is σ = 77116202. Its totient is φ = 77116200.

The previous prime is 77116187. The next prime is 77116211. The reversal of 77116201 is 10261177.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38738176 + 38378025 = 6224^2 + 6195^2 .

It is an emirp because it is prime and its reverse (10261177) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77116201 - 2⁷ = 77116073 is a prime.

It is not a weakly prime, because it can be changed into another prime (77116211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38558100 + 38558101.

It is an arithmetic number, because the mean of its divisors is an integer number (38558101).

Almost surely, 2^77116201 is an apocalyptic number.

It is an amenable number.

77116201 is a deficient number, since it is larger than the sum of its proper divisors (1).

77116201 is an equidigital number, since it uses as much as digits as its factorization.

77116201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 77116201 is about 8781.5830577408. The cubic root of 77116201 is about 425.6459860218.

Adding to 77116201 its reverse (10261177), we get a palindrome (87377378).

The spelling of 77116201 in words is "seventy-seven million, one hundred sixteen thousand, two hundred one".