724770 has 24 divisors (see below), whose sum is σ = 1884636. Its totient is φ = 193248.

The previous prime is 724769. The next prime is 724777. The reversal of 724770 is 77427.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 720801 + 3969 = 849^2 + 63^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 724770.

It is not an unprimeable number, because it can be changed into a prime (724777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3937 + ... + 4116.

2⁷²⁴⁷⁷⁰ is an apocalyptic number.

724770 is an abundant number, since it is smaller than the sum of its proper divisors (1159866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

724770 is a wasteful number, since it uses less digits than its factorization.

724770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8066 (or 8063 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 27.

The square root of 724770 is about 851.3342469324. The cubic root of 724770 is about 89.8255881499.

The spelling of 724770 in words is "seven hundred twenty-four thousand, seven hundred seventy", and thus it is an iban number.