776454949 has 2 divisors, whose sum is σ = 776454950. Its totient is φ = 776454948.

The previous prime is 776454941. The next prime is 776454983. The reversal of 776454949 is 949454677.

776454949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 484660225 + 291794724 = 22015^2 + 17082^2 .

It is an emirp because it is prime and its reverse (949454677) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 776454949 - 2³ = 776454941 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 776454949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (776454941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388227474 + 388227475.

It is an arithmetic number, because the mean of its divisors is an integer number (388227475).

Almost surely, 2^776454949 is an apocalyptic number.

It is an amenable number.

776454949 is a deficient number, since it is larger than the sum of its proper divisors (1).

776454949 is an equidigital number, since it uses as much as digits as its factorization.

776454949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 55.

The square root of 776454949 is about 27864.9412165179. The cubic root of 776454949 is about 919.1197270842.

The spelling of 776454949 in words is "seven hundred seventy-six million, four hundred fifty-four thousand, nine hundred forty-nine".