768320177 has 2 divisors, whose sum is σ = 768320178. Its totient is φ = 768320176.

The previous prime is 768320167. The next prime is 768320209. The reversal of 768320177 is 771023867.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511166881 + 257153296 = 22609^2 + 16036^2 .

It is a cyclic number.

It is not a de Polignac number, because 768320177 - 2⁸ = 768319921 is a prime.

It is a super-2 number, since 2×768320177² = 1180631788770622658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (768320107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384160088 + 384160089.

It is an arithmetic number, because the mean of its divisors is an integer number (384160089).

Almost surely, 2^768320177 is an apocalyptic number.

It is an amenable number.

768320177 is a deficient number, since it is larger than the sum of its proper divisors (1).

768320177 is an equidigital number, since it uses as much as digits as its factorization.

768320177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 768320177 is about 27718.5890153161. The cubic root of 768320177 is about 915.8986371855.

The spelling of 768320177 in words is "seven hundred sixty-eight million, three hundred twenty thousand, one hundred seventy-seven".