724670 has 8 divisors (see below), whose sum is σ = 1304424. Its totient is φ = 289864.

The previous prime is 724651. The next prime is 724721. The reversal of 724670 is 76427.

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

It is a congruent number.

It is an unprimeable number.

724670 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36224 + ... + 36243.

It is an arithmetic number, because the mean of its divisors is an integer number (163053).

2⁷²⁴⁶⁷⁰ is an apocalyptic number.

724670 is a deficient number, since it is larger than the sum of its proper divisors (579754).

724670 is a wasteful number, since it uses less digits than its factorization.

724670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72474.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 724670 is about 851.2755135677. The cubic root of 724670 is about 89.8214567372.

The spelling of 724670 in words is "seven hundred twenty-four thousand, six hundred seventy".