724747 has 2 divisors, whose sum is σ = 724748. Its totient is φ = 724746.

The previous prime is 724733. The next prime is 724751. The reversal of 724747 is 747427.

724747 is nontrivially palindromic in base 16.

724747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (747427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 724747 - 2¹⁵ = 691979 is a prime.

It is not a weakly prime, because it can be changed into another prime (724777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362373 + 362374.

It is an arithmetic number, because the mean of its divisors is an integer number (362374).

2⁷²⁴⁷⁴⁷ is an apocalyptic number.

724747 is a deficient number, since it is larger than the sum of its proper divisors (1).

724747 is an equidigital number, since it uses as much as digits as its factorization.

724747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10976, while the sum is 31.

The square root of 724747 is about 851.3207386174. The cubic root of 724747 is about 89.8246379586.

The spelling of 724747 in words is "seven hundred twenty-four thousand, seven hundred forty-seven", and thus it is an iban number.