720340086 has 32 divisors (see below), whose sum is σ = 1469145600. Its totient is φ = 235391840.

The previous prime is 720340069. The next prime is 720340121. The reversal of 720340086 is 680043027.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135091 + ... + 140321.

It is an arithmetic number, because the mean of its divisors is an integer number (45910800).

Almost surely, 2^720340086 is an apocalyptic number.

720340086 is an abundant number, since it is smaller than the sum of its proper divisors (748805514).

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

720340086 is a wasteful number, since it uses less digits than its factorization.

720340086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5684.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 720340086 is about 26839.1521103033. The cubic root of 720340086 is about 896.4220440446.

The spelling of 720340086 in words is "seven hundred twenty million, three hundred forty thousand, eighty-six".