720000443 has 4 divisors (see below), whose sum is σ = 723978528. Its totient is φ = 716022360.

The previous prime is 720000397. The next prime is 720000461. The reversal of 720000443 is 344000027.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344000027 = 7 ⋅49142861.

It is a cyclic number.

It is not a de Polignac number, because 720000443 - 2²⁸ = 451564987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720000343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1988771 + ... + 1989132.

It is an arithmetic number, because the mean of its divisors is an integer number (180994632).

Almost surely, 2^720000443 is an apocalyptic number.

720000443 is a deficient number, since it is larger than the sum of its proper divisors (3978085).

720000443 is a wasteful number, since it uses less digits than its factorization.

720000443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3978084.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 720000443 is about 26832.8239848138. The cubic root of 720000443 is about 896.2811331320.

The spelling of 720000443 in words is "seven hundred twenty million, four hundred forty-three", and thus it is an aban number.