774828427 has 2 divisors, whose sum is σ = 774828428. Its totient is φ = 774828426.

The previous prime is 774828403. The next prime is 774828517. The reversal of 774828427 is 724828477.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 774828427 - 2²³ = 766439819 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (774808427) 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, 387414213 + 387414214.

It is an arithmetic number, because the mean of its divisors is an integer number (387414214).

Almost surely, 2^774828427 is an apocalyptic number.

774828427 is a deficient number, since it is larger than the sum of its proper divisors (1).

774828427 is an equidigital number, since it uses as much as digits as its factorization.

774828427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1404928, while the sum is 49.

The square root of 774828427 is about 27835.7401015313. The cubic root of 774828427 is about 918.4774861040.

The spelling of 774828427 in words is "seven hundred seventy-four million, eight hundred twenty-eight thousand, four hundred twenty-seven".