720144347 has 8 divisors (see below), whose sum is σ = 782789616. Its totient is φ = 658534752.

The previous prime is 720144311. The next prime is 720144371. The reversal of 720144347 is 743441027.

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-720144347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720147347) 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, 257468 + ... + 260249.

It is an arithmetic number, because the mean of its divisors is an integer number (97848702).

Almost surely, 2^720144347 is an apocalyptic number.

720144347 is a deficient number, since it is larger than the sum of its proper divisors (62645269).

720144347 is a wasteful number, since it uses less digits than its factorization.

720144347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517837.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 720144347 is about 26835.5053427358. The cubic root of 720144347 is about 896.3408413583.

The spelling of 720144347 in words is "seven hundred twenty million, one hundred forty-four thousand, three hundred forty-seven".