770781223 has 2 divisors, whose sum is σ = 770781224. Its totient is φ = 770781222.

The previous prime is 770781191. The next prime is 770781233. The reversal of 770781223 is 322187077.

770781223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 770781223 - 2⁵ = 770781191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (770781233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385390611 + 385390612.

It is an arithmetic number, because the mean of its divisors is an integer number (385390612).

Almost surely, 2^770781223 is an apocalyptic number.

770781223 is a deficient number, since it is larger than the sum of its proper divisors (1).

770781223 is an equidigital number, since it uses as much as digits as its factorization.

770781223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 770781223 is about 27762.9469437234. The cubic root of 770781223 is about 916.8755156235.

The spelling of 770781223 in words is "seven hundred seventy million, seven hundred eighty-one thousand, two hundred twenty-three".