712389497 has 2 divisors, whose sum is σ = 712389498. Its totient is φ = 712389496.

The previous prime is 712389479. The next prime is 712389523. The reversal of 712389497 is 794983217.

Together with previous prime (712389479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 640292416 + 72097081 = 25304^2 + 8491^2 .

It is a cyclic number.

It is not a de Polignac number, because 712389497 - 2⁸ = 712389241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (712389467) 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, 356194748 + 356194749.

It is an arithmetic number, because the mean of its divisors is an integer number (356194749).

Almost surely, 2^712389497 is an apocalyptic number.

It is an amenable number.

712389497 is a deficient number, since it is larger than the sum of its proper divisors (1).

712389497 is an equidigital number, since it uses as much as digits as its factorization.

712389497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 50.

The square root of 712389497 is about 26690.6256389767. The cubic root of 712389497 is about 893.1118176011. Note that the first 3 decimals are identical.

The spelling of 712389497 in words is "seven hundred twelve million, three hundred eighty-nine thousand, four hundred ninety-seven".