772718423 has 2 divisors, whose sum is σ = 772718424. Its totient is φ = 772718422.

The previous prime is 772718417. The next prime is 772718447. The reversal of 772718423 is 324817277.

It is a weak prime.

It is an emirp because it is prime and its reverse (324817277) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 772718423 - 2⁴ = 772718407 is a prime.

It is a super-2 number, since 2×772718423² = 1194187522487213858, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (772718413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386359211 + 386359212.

It is an arithmetic number, because the mean of its divisors is an integer number (386359212).

Almost surely, 2^772718423 is an apocalyptic number.

772718423 is a deficient number, since it is larger than the sum of its proper divisors (1).

772718423 is an equidigital number, since it uses as much as digits as its factorization.

772718423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131712, while the sum is 41.

The square root of 772718423 is about 27797.8132773065. The cubic root of 772718423 is about 917.6429989925.

The spelling of 772718423 in words is "seven hundred seventy-two million, seven hundred eighteen thousand, four hundred twenty-three".