720406713 has 32 divisors (see below), whose sum is σ = 1095607296. Its totient is φ = 417688128.

The previous prime is 720406703. The next prime is 720406727. The reversal of 720406713 is 317604027.

It is a de Polignac number, because none of the positive numbers 2^k-720406713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (720406703) 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, 54106 + ... + 66092.

It is an arithmetic number, because the mean of its divisors is an integer number (34237728).

Almost surely, 2^720406713 is an apocalyptic number.

It is an amenable number.

720406713 is a deficient number, since it is larger than the sum of its proper divisors (375200583).

720406713 is a wasteful number, since it uses less digits than its factorization.

720406713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12093.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 720406713 is about 26840.3933093388. The cubic root of 720406713 is about 896.4496810230.

The spelling of 720406713 in words is "seven hundred twenty million, four hundred six thousand, seven hundred thirteen".