724673297 has 6 divisors (see below), whose sum is σ = 767418678. Its totient is φ = 681940992.

The previous prime is 724673189. The next prime is 724673353. The reversal of 724673297 is 792376427.

It can be written as a sum of positive squares in 3 ways, for example, as 2085136 + 722588161 = 1444^2 + 26881^2 .

It is not a de Polignac number, because 724673297 - 2¹² = 724669201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (724676297) 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 in 5 ways as a sum of consecutive naturals, for example, 107729 + ... + 114257.

It is an arithmetic number, because the mean of its divisors is an integer number (127903113).

Almost surely, 2^724673297 is an apocalyptic number.

It is an amenable number.

724673297 is a deficient number, since it is larger than the sum of its proper divisors (42745381).

724673297 is an frugal number, since it uses more digits than its factorization.

724673297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13075 (or 6546 counting only the distinct ones).

The product of its digits is 889056, while the sum is 47.

The square root of 724673297 is about 26919.7566296577. The cubic root of 724673297 is about 898.2159295591.

The spelling of 724673297 in words is "seven hundred twenty-four million, six hundred seventy-three thousand, two hundred ninety-seven".