77303201 has 2 divisors, whose sum is σ = 77303202. Its totient is φ = 77303200.

The previous prime is 77303143. The next prime is 77303227. The reversal of 77303201 is 10230377.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70543201 + 6760000 = 8399^2 + 2600^2 .

It is a cyclic number.

It is not a de Polignac number, because 77303201 - 2¹⁸ = 77041057 is a prime.

It is not a weakly prime, because it can be changed into another prime (77303701) 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, 38651600 + 38651601.

It is an arithmetic number, because the mean of its divisors is an integer number (38651601).

Almost surely, 2^77303201 is an apocalyptic number.

It is an amenable number.

77303201 is a deficient number, since it is larger than the sum of its proper divisors (1).

77303201 is an equidigital number, since it uses as much as digits as its factorization.

77303201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 77303201 is about 8792.2238938735. The cubic root of 77303201 is about 425.9897596486.

Adding to 77303201 its reverse (10230377), we get a palindrome (87533578).

The spelling of 77303201 in words is "seventy-seven million, three hundred three thousand, two hundred one".