720470 has 8 divisors (see below), whose sum is σ = 1296864. Its totient is φ = 288184.

The previous prime is 720439. The next prime is 720481. The reversal of 720470 is 74027.

720470 = T₁₂₄ + T₁₂₅ + ... + T₁₈₃.

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

It is a congruent number.

It is an unprimeable number.

720470 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 36014 + ... + 36033.

It is an arithmetic number, because the mean of its divisors is an integer number (162108).

2⁷²⁰⁴⁷⁰ is an apocalyptic number.

720470 is a deficient number, since it is larger than the sum of its proper divisors (576394).

720470 is a wasteful number, since it uses less digits than its factorization.

720470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72054.

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 720470 is about 848.8050423978. The cubic root of 720470 is about 89.6475930986.

Adding to 720470 its reverse (74027), we get a palindrome (794497).

The spelling of 720470 in words is "seven hundred twenty thousand, four hundred seventy", and thus it is an iban number.