9713200021 has 8 divisors (see below), whose sum is σ = 11241317120. Its totient is φ = 8220212208.

The previous prime is 9713200001. The next prime is 9713200033. The reversal of 9713200021 is 1200023179.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9713200021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9713200001) 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, 8781726 + ... + 8782831.

It is an arithmetic number, because the mean of its divisors is an integer number (1405164640).

Almost surely, 2^9713200021 is an apocalyptic number.

It is an amenable number.

9713200021 is a deficient number, since it is larger than the sum of its proper divisors (1528117099).

9713200021 is a wasteful number, since it uses less digits than its factorization.

9713200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17564643.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 9713200021 is about 98555.5681887127. The cubic root of 9713200021 is about 2133.6381958171.

The spelling of 9713200021 in words is "nine billion, seven hundred thirteen million, two hundred thousand, twenty-one".