724849 has 4 divisors (see below), whose sum is σ = 726640. Its totient is φ = 723060.

The previous prime is 724847. The next prime is 724853. The reversal of 724849 is 948427.

It is a happy number.

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 724849 - 2¹ = 724847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (724847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34 + ... + 1204.

It is an arithmetic number, because the mean of its divisors is an integer number (181660).

2⁷²⁴⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

724849 is a deficient number, since it is larger than the sum of its proper divisors (1791).

724849 is a wasteful number, since it uses less digits than its factorization.

724849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790.

The product of its digits is 16128, while the sum is 34.

The square root of 724849 is about 851.3806434257. The cubic root of 724849 is about 89.8288516972.

The spelling of 724849 in words is "seven hundred twenty-four thousand, eight hundred forty-nine".