724825 has 12 divisors (see below), whose sum is σ = 912640. Its totient is φ = 570960.

The previous prime is 724813. The next prime is 724837. The reversal of 724825 is 528427.

It is an interprime number because it is at equal distance from previous prime (724813) and next prime (724837).

It is not a de Polignac number, because 724825 - 2⁹ = 724313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 724793 and 724802.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1792 + ... + 2158.

2⁷²⁴⁸²⁵ is an apocalyptic number.

It is an amenable number.

724825 is a deficient number, since it is larger than the sum of its proper divisors (187815).

724825 is a wasteful number, since it uses less digits than its factorization.

724825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456 (or 451 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 724825 is about 851.3665485559. The cubic root of 724825 is about 89.8278602649.

The spelling of 724825 in words is "seven hundred twenty-four thousand, eight hundred twenty-five".