724926253 has 8 divisors (see below), whose sum is σ = 750223800. Its totient is φ = 699648768.

The previous prime is 724926239. The next prime is 724926263. The reversal of 724926253 is 352629427.

It can be written as a sum of positive squares in 4 ways, for example, as 19386409 + 705539844 = 4403^2 + 26562^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 724926253 - 2⁵ = 724926221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724926203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139225 + ... + 144337.

It is an arithmetic number, because the mean of its divisors is an integer number (93777975).

Almost surely, 2^724926253 is an apocalyptic number.

It is an amenable number.

724926253 is a deficient number, since it is larger than the sum of its proper divisors (25297547).

724926253 is a wasteful number, since it uses less digits than its factorization.

724926253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10031.

The product of its digits is 181440, while the sum is 40.

The square root of 724926253 is about 26924.4545534352. The cubic root of 724926253 is about 898.3204284545.

The spelling of 724926253 in words is "seven hundred twenty-four million, nine hundred twenty-six thousand, two hundred fifty-three".