729867287 has 2 divisors, whose sum is σ = 729867288. Its totient is φ = 729867286.

The previous prime is 729867269. The next prime is 729867289. The reversal of 729867287 is 782768927.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 729867287 - 2¹⁴ = 729850903 is a prime.

Together with 729867289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (729867289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364933643 + 364933644.

It is an arithmetic number, because the mean of its divisors is an integer number (364933644).

Almost surely, 2^729867287 is an apocalyptic number.

729867287 is a deficient number, since it is larger than the sum of its proper divisors (1).

729867287 is an equidigital number, since it uses as much as digits as its factorization.

729867287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4741632, while the sum is 56.

The square root of 729867287 is about 27016.0560963291. The cubic root of 729867287 is about 900.3567667867.

The spelling of 729867287 in words is "seven hundred twenty-nine million, eight hundred sixty-seven thousand, two hundred eighty-seven".