720850867 has 8 divisors (see below), whose sum is σ = 789309360. Its totient is φ = 652880160.

The previous prime is 720850829. The next prime is 720850873. The reversal of 720850867 is 768058027.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720850867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720850817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118848 + ... + 124765.

It is an arithmetic number, because the mean of its divisors is an integer number (98663670).

Almost surely, 2^720850867 is an apocalyptic number.

720850867 is a deficient number, since it is larger than the sum of its proper divisors (68458493).

720850867 is a wasteful number, since it uses less digits than its factorization.

720850867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243893.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 720850867 is about 26848.6660190036. Note that the first 3 decimals coincide. The cubic root of 720850867 is about 896.6338732327.

The spelling of 720850867 in words is "seven hundred twenty million, eight hundred fifty thousand, eight hundred sixty-seven".