720466 has 4 divisors (see below), whose sum is σ = 1080702. Its totient is φ = 360232.

The previous prime is 720439. The next prime is 720481. The reversal of 720466 is 664027.

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

It can be written as a sum of positive squares in only one way, i.e., 594441 + 126025 = 771^2 + 355^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 720466.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180115 + ... + 180118.

2⁷²⁰⁴⁶⁶ is an apocalyptic number.

720466 is a deficient number, since it is larger than the sum of its proper divisors (360236).

720466 is a wasteful number, since it uses less digits than its factorization.

720466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360235.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 720466 is about 848.8026861409. The cubic root of 720466 is about 89.6474271926.

The spelling of 720466 in words is "seven hundred twenty thousand, four hundred sixty-six".