720198894 has 8 divisors (see below), whose sum is σ = 1440397800. Its totient is φ = 240066296.

The previous prime is 720198887. The next prime is 720198901. The reversal of 720198894 is 498891027.

It is an interprime number because it is at equal distance from previous prime (720198887) and next prime (720198901).

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

720198894 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 60016569 + ... + 60016580.

It is an arithmetic number, because the mean of its divisors is an integer number (180049725).

Almost surely, 2^720198894 is an apocalyptic number.

720198894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

720198894 is a wasteful number, since it uses less digits than its factorization.

720198894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120033154.

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 720198894 is about 26836.5216449524. The cubic root of 720198894 is about 896.3634717609.

The spelling of 720198894 in words is "seven hundred twenty million, one hundred ninety-eight thousand, eight hundred ninety-four".