724117 has 2 divisors, whose sum is σ = 724118. Its totient is φ = 724116.

The previous prime is 724111. The next prime is 724121. The reversal of 724117 is 711427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 695556 + 28561 = 834^2 + 169^2 .

It is an emirp because it is prime and its reverse (711427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 724117 - 2¹¹ = 722069 is a prime.

It is equal to p₅₈₃₅₁ and since 724117 and 58351 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362058 + 362059.

It is an arithmetic number, because the mean of its divisors is an integer number (362059).

2⁷²⁴¹¹⁷ is an apocalyptic number.

It is an amenable number.

724117 is a deficient number, since it is larger than the sum of its proper divisors (1).

724117 is an equidigital number, since it uses as much as digits as its factorization.

724117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 392, while the sum is 22.

The square root of 724117 is about 850.9506448673. The cubic root of 724117 is about 89.7986031598.

It can be divided in two parts, 724 and 117, that added together give a square (841 = 29²).

The spelling of 724117 in words is "seven hundred twenty-four thousand, one hundred seventeen", and thus it is an iban number.