9720713 has 8 divisors (see below), whose sum is σ = 10185600. Its totient is φ = 9264528.

The previous prime is 9720673. The next prime is 9720727. The reversal of 9720713 is 3170279.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9720713 - 2¹² = 9716617 is a prime.

It is a super-2 number, since 2×9720713² = 188984522456738, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9720773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170 + ... + 4412.

It is an arithmetic number, because the mean of its divisors is an integer number (1273200).

Almost surely, 2^9720713 is an apocalyptic number.

It is an amenable number.

9720713 is a deficient number, since it is larger than the sum of its proper divisors (464887).

9720713 is a wasteful number, since it uses less digits than its factorization.

9720713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4351.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 9720713 is about 3117.8057989554. The cubic root of 9720713 is about 213.4188163824.

The spelling of 9720713 in words is "nine million, seven hundred twenty thousand, seven hundred thirteen".