724161 has 8 divisors (see below), whose sum is σ = 971200. Its totient is φ = 479952.

The previous prime is 724153. The next prime is 724187. The reversal of 724161 is 161427.

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

It is not a de Polignac number, because 724161 - 2³ = 724153 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 724161.

It is not an unprimeable number, because it can be changed into a prime (724111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10 + ... + 1203.

It is an arithmetic number, because the mean of its divisors is an integer number (121400).

2⁷²⁴¹⁶¹ is an apocalyptic number.

It is an amenable number.

724161 is a deficient number, since it is larger than the sum of its proper divisors (247039).

724161 is a wasteful number, since it uses less digits than its factorization.

724161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415.

The product of its digits is 336, while the sum is 21.

The square root of 724161 is about 850.9764979128. The cubic root of 724161 is about 89.8004219536.

Adding to 724161 its reverse (161427), we get a palindrome (885588).

The spelling of 724161 in words is "seven hundred twenty-four thousand, one hundred sixty-one".