720147403 has 4 divisors (see below), whose sum is σ = 720588960. Its totient is φ = 719705848.

The previous prime is 720147397. The next prime is 720147437. The reversal of 720147403 is 304741027.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 720147403 - 2⁹ = 720146891 is a prime.

It is a super-2 number, since 2×720147403² = 1037224564095288818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720147803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218323 + ... + 221596.

It is an arithmetic number, because the mean of its divisors is an integer number (180147240).

Almost surely, 2^720147403 is an apocalyptic number.

720147403 is a deficient number, since it is larger than the sum of its proper divisors (441557).

720147403 is a wasteful number, since it uses less digits than its factorization.

720147403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441556.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 720147403 is about 26835.5622821658. The cubic root of 720147403 is about 896.3421092587.

The spelling of 720147403 in words is "seven hundred twenty million, one hundred forty-seven thousand, four hundred three".