720006735 has 32 divisors (see below), whose sum is σ = 1343462400. Its totient is φ = 329143584.

The previous prime is 720006731. The next prime is 720006739. The reversal of 720006735 is 537600027.

720006735 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (720006731) and next prime (720006739).

It is not a de Polignac number, because 720006735 - 2² = 720006731 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720006731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64827 + ... + 75116.

It is an arithmetic number, because the mean of its divisors is an integer number (41983200).

Almost surely, 2^720006735 is an apocalyptic number.

720006735 is a deficient number, since it is larger than the sum of its proper divisors (623455665).

720006735 is a wasteful number, since it uses less digits than its factorization.

720006735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139972 (or 139958 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 720006735 is about 26832.9412290192. The cubic root of 720006735 is about 896.2837439565.

The spelling of 720006735 in words is "seven hundred twenty million, six thousand, seven hundred thirty-five".