770647313 has 2 divisors, whose sum is σ = 770647314. Its totient is φ = 770647312.

The previous prime is 770647309. The next prime is 770647337. The reversal of 770647313 is 313746077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 600397009 + 170250304 = 24503^2 + 13048^2 .

It is an emirp because it is prime and its reverse (313746077) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 770647313 - 2² = 770647309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (770640313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385323656 + 385323657.

It is an arithmetic number, because the mean of its divisors is an integer number (385323657).

Almost surely, 2^770647313 is an apocalyptic number.

It is an amenable number.

770647313 is a deficient number, since it is larger than the sum of its proper divisors (1).

770647313 is an equidigital number, since it uses as much as digits as its factorization.

770647313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 74088, while the sum is 38.

The square root of 770647313 is about 27760.5351713543. The cubic root of 770647313 is about 916.8224154236.

The spelling of 770647313 in words is "seven hundred seventy million, six hundred forty-seven thousand, three hundred thirteen".