724855 has 8 divisors (see below), whose sum is σ = 900000. Its totient is φ = 559776.

The previous prime is 724853. The next prime is 724879. The reversal of 724855 is 558427.

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

It is a cyclic number.

It is not a de Polignac number, because 724855 - 2¹ = 724853 is a prime.

It is a d-powerful number, because it can be written as 7⁴ + 2¹⁶ + 8⁶ + 4⁵ + 5⁵ + 5⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2355 + ... + 2644.

It is an arithmetic number, because the mean of its divisors is an integer number (112500).

2⁷²⁴⁸⁵⁵ is an apocalyptic number.

724855 is a deficient number, since it is larger than the sum of its proper divisors (175145).

724855 is a wasteful number, since it uses less digits than its factorization.

724855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5033.

The product of its digits is 11200, while the sum is 31.

The square root of 724855 is about 851.3841671067. The cubic root of 724855 is about 89.8290995519.

The spelling of 724855 in words is "seven hundred twenty-four thousand, eight hundred fifty-five".