774726373 has 2 divisors, whose sum is σ = 774726374. Its totient is φ = 774726372.

The previous prime is 774726371. The next prime is 774726389. The reversal of 774726373 is 373627477.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 694480609 + 80245764 = 26353^2 + 8958^2 .

It is an emirp because it is prime and its reverse (373627477) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 774726373 - 2¹ = 774726371 is a prime.

Together with 774726371, 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 (774726371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387363186 + 387363187.

It is an arithmetic number, because the mean of its divisors is an integer number (387363187).

Almost surely, 2^774726373 is an apocalyptic number.

It is an amenable number.

774726373 is a deficient number, since it is larger than the sum of its proper divisors (1).

774726373 is an equidigital number, since it uses as much as digits as its factorization.

774726373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1037232, while the sum is 46.

The square root of 774726373 is about 27833.9068942899. The cubic root of 774726373 is about 918.4371595776.

It can be divided in two parts, 77472 and 6373, that added together give a triangular number (83845 = T₄₀₉).

The spelling of 774726373 in words is "seven hundred seventy-four million, seven hundred twenty-six thousand, three hundred seventy-three".