712866449 has 2 divisors, whose sum is σ = 712866450. Its totient is φ = 712866448.

The previous prime is 712866443. The next prime is 712866461. The reversal of 712866449 is 944668217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 693374224 + 19492225 = 26332^2 + 4415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-712866449 is a prime.

It is not a weakly prime, because it can be changed into another prime (712866443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356433224 + 356433225.

It is an arithmetic number, because the mean of its divisors is an integer number (356433225).

Almost surely, 2^712866449 is an apocalyptic number.

It is an amenable number.

712866449 is a deficient number, since it is larger than the sum of its proper divisors (1).

712866449 is an equidigital number, since it uses as much as digits as its factorization.

712866449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 47.

The square root of 712866449 is about 26699.5589663949. The cubic root of 712866449 is about 893.3110889458.

The spelling of 712866449 in words is "seven hundred twelve million, eight hundred sixty-six thousand, four hundred forty-nine".