770654749 has 2 divisors, whose sum is σ = 770654750. Its totient is φ = 770654748.

The previous prime is 770654747. The next prime is 770654777. The reversal of 770654749 is 947456077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 705964900 + 64689849 = 26570^2 + 8043^2 .

It is a cyclic number.

It is not a de Polignac number, because 770654749 - 2¹ = 770654747 is a prime.

Together with 770654747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (770654747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385327374 + 385327375.

It is an arithmetic number, because the mean of its divisors is an integer number (385327375).

Almost surely, 2^770654749 is an apocalyptic number.

It is an amenable number.

770654749 is a deficient number, since it is larger than the sum of its proper divisors (1).

770654749 is an equidigital number, since it uses as much as digits as its factorization.

770654749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1481760, while the sum is 49.

The square root of 770654749 is about 27760.6691021668. The cubic root of 770654749 is about 916.8253642301.

The spelling of 770654749 in words is "seven hundred seventy million, six hundred fifty-four thousand, seven hundred forty-nine".