712744391 has 2 divisors, whose sum is σ = 712744392. Its totient is φ = 712744390.

The previous prime is 712744337. The next prime is 712744423. The reversal of 712744391 is 193447217.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (193447217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 712744391 - 2⁶ = 712744327 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (712764391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356372195 + 356372196.

It is an arithmetic number, because the mean of its divisors is an integer number (356372196).

Almost surely, 2^712744391 is an apocalyptic number.

712744391 is a deficient number, since it is larger than the sum of its proper divisors (1).

712744391 is an equidigital number, since it uses as much as digits as its factorization.

712744391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 38.

The square root of 712744391 is about 26697.2731004498. The cubic root of 712744391 is about 893.2601013736.

The spelling of 712744391 in words is "seven hundred twelve million, seven hundred forty-four thousand, three hundred ninety-one".