776980449 has 24 divisors (see below), whose sum is σ = 1294413120. Its totient is φ = 439911648.

The previous prime is 776980417. The next prime is 776980481. The reversal of 776980449 is 944089677.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (776980417) and next prime (776980481).

It is not a de Polignac number, because 776980449 - 2⁵ = 776980417 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 776980395 and 776980404.

It is not an unprimeable number, because it can be changed into a prime (776980049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49707 + ... + 63440.

It is an arithmetic number, because the mean of its divisors is an integer number (53933880).

Almost surely, 2^776980449 is an apocalyptic number.

It is an amenable number.

776980449 is a deficient number, since it is larger than the sum of its proper divisors (517432671).

776980449 is a wasteful number, since it uses less digits than its factorization.

776980449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113269 (or 113266 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The square root of 776980449 is about 27874.3690332176. The cubic root of 776980449 is about 919.3270318758.

The spelling of 776980449 in words is "seven hundred seventy-six million, nine hundred eighty thousand, four hundred forty-nine".