720486 has 24 divisors (see below), whose sum is σ = 1681680. Its totient is φ = 221616.

The previous prime is 720481. The next prime is 720491. The reversal of 720486 is 684027.

It is an interprime number because it is at equal distance from previous prime (720481) and next prime (720491).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720481) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1306 + ... + 1773.

It is an arithmetic number, because the mean of its divisors is an integer number (70070).

2⁷²⁰⁴⁸⁶ is an apocalyptic number.

720486 is an abundant number, since it is smaller than the sum of its proper divisors (961194).

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

720486 is a wasteful number, since it uses less digits than its factorization.

720486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3100 (or 3097 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 720486 is about 848.8144673602. The cubic root of 720486 is about 89.6482567168.

The spelling of 720486 in words is "seven hundred twenty thousand, four hundred eighty-six".