712778347 has 2 divisors, whose sum is σ = 712778348. Its totient is φ = 712778346.

The previous prime is 712778281. The next prime is 712778383. The reversal of 712778347 is 743877217.

712778347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (743877217) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-712778347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 712778297 and 712778306.

It is not a weakly prime, because it can be changed into another prime (712778047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356389173 + 356389174.

It is an arithmetic number, because the mean of its divisors is an integer number (356389174).

Almost surely, 2^712778347 is an apocalyptic number.

712778347 is a deficient number, since it is larger than the sum of its proper divisors (1).

712778347 is an equidigital number, since it uses as much as digits as its factorization.

712778347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 460992, while the sum is 46.

The square root of 712778347 is about 26697.9090379752. The cubic root of 712778347 is about 893.2742864768.

The spelling of 712778347 in words is "seven hundred twelve million, seven hundred seventy-eight thousand, three hundred forty-seven".