774556229 has 2 divisors, whose sum is σ = 774556230. Its totient is φ = 774556228.

The previous prime is 774556217. The next prime is 774556259. The reversal of 774556229 is 922655477.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 708784129 + 65772100 = 26623^2 + 8110^2 .

It is an emirp because it is prime and its reverse (922655477) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 774556229 - 2⁴ = 774556213 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (774556259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387278114 + 387278115.

It is an arithmetic number, because the mean of its divisors is an integer number (387278115).

Almost surely, 2^774556229 is an apocalyptic number.

It is an amenable number.

774556229 is a deficient number, since it is larger than the sum of its proper divisors (1).

774556229 is an equidigital number, since it uses as much as digits as its factorization.

774556229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058400, while the sum is 47.

The square root of 774556229 is about 27830.8503104019. The cubic root of 774556229 is about 918.3699194876.

The spelling of 774556229 in words is "seven hundred seventy-four million, five hundred fifty-six thousand, two hundred twenty-nine".