775740223 has 2 divisors, whose sum is σ = 775740224. Its totient is φ = 775740222.

The previous prime is 775740191. The next prime is 775740241. The reversal of 775740223 is 322047577.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 775740223 - 2⁵ = 775740191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (775740293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387870111 + 387870112.

It is an arithmetic number, because the mean of its divisors is an integer number (387870112).

Almost surely, 2^775740223 is an apocalyptic number.

775740223 is a deficient number, since it is larger than the sum of its proper divisors (1).

775740223 is an equidigital number, since it uses as much as digits as its factorization.

775740223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82320, while the sum is 37.

The square root of 775740223 is about 27852.1134386603. The cubic root of 775740223 is about 918.8376242464.

The spelling of 775740223 in words is "seven hundred seventy-five million, seven hundred forty thousand, two hundred twenty-three".