712718987 has 2 divisors, whose sum is σ = 712718988. Its totient is φ = 712718986.

The previous prime is 712718977. The next prime is 712718989. The reversal of 712718987 is 789817217.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 712718987 - 2⁴ = 712718971 is a prime.

Together with 712718989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (712718989) 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, 356359493 + 356359494.

It is an arithmetic number, because the mean of its divisors is an integer number (356359494).

Almost surely, 2^712718987 is an apocalyptic number.

712718987 is a deficient number, since it is larger than the sum of its proper divisors (1).

712718987 is an equidigital number, since it uses as much as digits as its factorization.

712718987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136, while the sum is 50.

The square root of 712718987 is about 26696.7973172813. The cubic root of 712718987 is about 893.2494885697.

The spelling of 712718987 in words is "seven hundred twelve million, seven hundred eighteen thousand, nine hundred eighty-seven".