720308147 has 8 divisors (see below), whose sum is σ = 781299120. Its totient is φ = 660114720.

The previous prime is 720308137. The next prime is 720308189. The reversal of 720308147 is 741803027.

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 not a de Polignac number, because 720308147 - 2⁸ = 720307891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720308137) 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, 197504 + ... + 201117.

It is an arithmetic number, because the mean of its divisors is an integer number (97662390).

Almost surely, 2^720308147 is an apocalyptic number.

720308147 is a deficient number, since it is larger than the sum of its proper divisors (60990973).

720308147 is a wasteful number, since it uses less digits than its factorization.

720308147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398773.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 720308147 is about 26838.5570960885. The cubic root of 720308147 is about 896.4087950958.

The spelling of 720308147 in words is "seven hundred twenty million, three hundred eight thousand, one hundred forty-seven".