724361 has 4 divisors (see below), whose sum is σ = 790224. Its totient is φ = 658500.

The previous prime is 724331. The next prime is 724393. The reversal of 724361 is 163427.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 724361 - 2¹⁰ = 723337 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 724361.

It is not an unprimeable number, because it can be changed into a prime (724331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32915 + ... + 32936.

It is an arithmetic number, because the mean of its divisors is an integer number (197556).

2⁷²⁴³⁶¹ is an apocalyptic number.

It is an amenable number.

724361 is a deficient number, since it is larger than the sum of its proper divisors (65863).

724361 is a wasteful number, since it uses less digits than its factorization.

724361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65862.

The product of its digits is 1008, while the sum is 23.

The square root of 724361 is about 851.0940018588. The cubic root of 724361 is about 89.8086882697.

Adding to 724361 its reverse (163427), we get a palindrome (887788).

The spelling of 724361 in words is "seven hundred twenty-four thousand, three hundred sixty-one".