77112449 has 2 divisors, whose sum is σ = 77112450. Its totient is φ = 77112448.

The previous prime is 77112379. The next prime is 77112457. The reversal of 77112449 is 94421177.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76440049 + 672400 = 8743^2 + 820^2 .

It is a cyclic number.

It is not a de Polignac number, because 77112449 - 2⁸ = 77112193 is a prime.

It is not a weakly prime, because it can be changed into another prime (77112949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38556224 + 38556225.

It is an arithmetic number, because the mean of its divisors is an integer number (38556225).

Almost surely, 2^77112449 is an apocalyptic number.

It is an amenable number.

77112449 is a deficient number, since it is larger than the sum of its proper divisors (1).

77112449 is an equidigital number, since it uses as much as digits as its factorization.

77112449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 35.

The square root of 77112449 is about 8781.3694262342. The cubic root of 77112449 is about 425.6390828047.

The spelling of 77112449 in words is "seventy-seven million, one hundred twelve thousand, four hundred forty-nine".