77713201 has 2 divisors, whose sum is σ = 77713202. Its totient is φ = 77713200.

The previous prime is 77713193. The next prime is 77713217. The reversal of 77713201 is 10231777.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58920976 + 18792225 = 7676^2 + 4335^2 .

It is an emirp because it is prime and its reverse (10231777) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77713201 - 2³ = 77713193 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77713201.

It is not a weakly prime, because it can be changed into another prime (77713241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38856600 + 38856601.

It is an arithmetic number, because the mean of its divisors is an integer number (38856601).

Almost surely, 2^77713201 is an apocalyptic number.

It is an amenable number.

77713201 is a deficient number, since it is larger than the sum of its proper divisors (1).

77713201 is an equidigital number, since it uses as much as digits as its factorization.

77713201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2058, while the sum is 28.

The square root of 77713201 is about 8815.5091174588. The cubic root of 77713201 is about 426.7415522719.

Adding to 77713201 its reverse (10231777), we get a palindrome (87944978).

The spelling of 77713201 in words is "seventy-seven million, seven hundred thirteen thousand, two hundred one".