720013355 has 8 divisors (see below), whose sum is σ = 867823632. Its totient is φ = 573472288.

The previous prime is 720013339. The next prime is 720013369. The reversal of 720013355 is 553310027.

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 720013355 - 2⁴ = 720013339 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316052 + ... + 318321.

It is an arithmetic number, because the mean of its divisors is an integer number (108477954).

Almost surely, 2^720013355 is an apocalyptic number.

720013355 is a deficient number, since it is larger than the sum of its proper divisors (147810277).

720013355 is a wasteful number, since it uses less digits than its factorization.

720013355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634605.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 720013355 is about 26833.0645845755. The cubic root of 720013355 is about 896.2864908661.

The spelling of 720013355 in words is "seven hundred twenty million, thirteen thousand, three hundred fifty-five".