720574 has 4 divisors (see below), whose sum is σ = 1080864. Its totient is φ = 360286.

The previous prime is 720571. The next prime is 720607. The reversal of 720574 is 475027.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180142 + ... + 180145.

It is an arithmetic number, because the mean of its divisors is an integer number (270216).

2⁷²⁰⁵⁷⁴ is an apocalyptic number.

720574 is a deficient number, since it is larger than the sum of its proper divisors (360290).

720574 is a wasteful number, since it uses less digits than its factorization.

720574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360289.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 720574 is about 848.8663027827. The cubic root of 720574 is about 89.6519064409.

The spelling of 720574 in words is "seven hundred twenty thousand, five hundred seventy-four".