724681487 has 2 divisors, whose sum is σ = 724681488. Its totient is φ = 724681486.

The previous prime is 724681481. The next prime is 724681501. The reversal of 724681487 is 784186427.

724681487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (784186427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 724681487 - 2⁸ = 724681231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724681481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362340743 + 362340744.

It is an arithmetic number, because the mean of its divisors is an integer number (362340744).

Almost surely, 2^724681487 is an apocalyptic number.

724681487 is a deficient number, since it is larger than the sum of its proper divisors (1).

724681487 is an equidigital number, since it uses as much as digits as its factorization.

724681487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 602112, while the sum is 47.

The square root of 724681487 is about 26919.9087479880. The cubic root of 724681487 is about 898.2193133188.

The spelling of 724681487 in words is "seven hundred twenty-four million, six hundred eighty-one thousand, four hundred eighty-seven".