677508773 has 2 divisors, whose sum is σ = 677508774. Its totient is φ = 677508772.

The previous prime is 677508737. The next prime is 677508823. The reversal of 677508773 is 377805776.

677508773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (677508737) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (677508823) can be obtained adding 677508773 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 670965409 + 6543364 = 25903^2 + 2558^2 .

It is a cyclic number.

It is not a de Polignac number, because 677508773 - 2⁶ = 677508709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677508373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338754386 + 338754387.

It is an arithmetic number, because the mean of its divisors is an integer number (338754387).

Almost surely, 2^677508773 is an apocalyptic number.

It is an amenable number.

677508773 is a deficient number, since it is larger than the sum of its proper divisors (1).

677508773 is an equidigital number, since it uses as much as digits as its factorization.

677508773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728720, while the sum is 50.

The square root of 677508773 is about 26028.9986937646. The cubic root of 677508773 is about 878.2907477270.

The spelling of 677508773 in words is "six hundred seventy-seven million, five hundred eight thousand, seven hundred seventy-three".