720213343 has 4 divisors (see below), whose sum is σ = 733802328. Its totient is φ = 706624360.

The previous prime is 720213341. The next prime is 720213353. The reversal of 720213343 is 343312027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343312027 = 251 ⋅1367777.

It is a cyclic number.

It is not a de Polignac number, because 720213343 - 2¹ = 720213341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720213341) by changing a digit.

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, 6794413 + ... + 6794518.

It is an arithmetic number, because the mean of its divisors is an integer number (183450582).

Almost surely, 2^720213343 is an apocalyptic number.

720213343 is a deficient number, since it is larger than the sum of its proper divisors (13588985).

720213343 is a wasteful number, since it uses less digits than its factorization.

720213343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13588984.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 720213343 is about 26836.7908476405. The cubic root of 720213343 is about 896.3694661556.

The spelling of 720213343 in words is "seven hundred twenty million, two hundred thirteen thousand, three hundred forty-three".