720711486 has 128 divisors (see below), whose sum is σ = 1851310080. Its totient is φ = 205682400.

The previous prime is 720711473. The next prime is 720711499. The reversal of 720711486 is 684117027.

It is an interprime number because it is at equal distance from previous prime (720711473) and next prime (720711499).

It is a self number, because there is not a number n which added to its sum of digits gives 720711486.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 969631 + ... + 970373.

It is an arithmetic number, because the mean of its divisors is an integer number (14463360).

Almost surely, 2^720711486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 720711486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (925655040).

720711486 is an abundant number, since it is smaller than the sum of its proper divisors (1130598594).

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

720711486 is a wasteful number, since it uses less digits than its factorization.

720711486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 720711486 is about 26846.0702152103. The cubic root of 720711486 is about 896.5760795950.

The spelling of 720711486 in words is "seven hundred twenty million, seven hundred eleven thousand, four hundred eighty-six".