773640377 has 2 divisors, whose sum is σ = 773640378. Its totient is φ = 773640376.

The previous prime is 773640341. The next prime is 773640379. The reversal of 773640377 is 773046377.

773640377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 765020281 + 8620096 = 27659^2 + 2936^2 .

It is an emirp because it is prime and its reverse (773046377) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 773640377 - 2²⁶ = 706531513 is a prime.

Together with 773640379, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (773640379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386820188 + 386820189.

It is an arithmetic number, because the mean of its divisors is an integer number (386820189).

Almost surely, 2^773640377 is an apocalyptic number.

It is an amenable number.

773640377 is a deficient number, since it is larger than the sum of its proper divisors (1).

773640377 is an equidigital number, since it uses as much as digits as its factorization.

773640377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518616, while the sum is 44.

The square root of 773640377 is about 27814.3915446662. The cubic root of 773640377 is about 918.0078099243.

The spelling of 773640377 in words is "seven hundred seventy-three million, six hundred forty thousand, three hundred seventy-seven".