724461 has 8 divisors (see below), whose sum is σ = 982560. Its totient is φ = 474672.

The previous prime is 724459. The next prime is 724469. The reversal of 724461 is 164427.

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

It is not a de Polignac number, because 724461 - 2¹ = 724459 is a prime.

724461 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724469) 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, 1870 + ... + 2223.

It is an arithmetic number, because the mean of its divisors is an integer number (122820).

2⁷²⁴⁴⁶¹ is an apocalyptic number.

It is an amenable number.

724461 is a deficient number, since it is larger than the sum of its proper divisors (258099).

724461 is a wasteful number, since it uses less digits than its factorization.

724461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155.

The product of its digits is 1344, while the sum is 24.

The square root of 724461 is about 851.1527477486. The cubic root of 724461 is about 89.8128208572.

Adding to 724461 its reverse (164427), we get a palindrome (888888).

The spelling of 724461 in words is "seven hundred twenty-four thousand, four hundred sixty-one".