9713281 has 4 divisors (see below), whose sum is σ = 9730864. Its totient is φ = 9695700.

The previous prime is 9713279. The next prime is 9713303. The reversal of 9713281 is 1823179.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9713281 - 2¹ = 9713279 is a prime.

It is a super-2 number, since 2×9713281² = 188695655569922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9713201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7935 + ... + 9076.

It is an arithmetic number, because the mean of its divisors is an integer number (2432716).

Almost surely, 2^9713281 is an apocalyptic number.

It is an amenable number.

9713281 is a deficient number, since it is larger than the sum of its proper divisors (17583).

9713281 is a wasteful number, since it uses less digits than its factorization.

9713281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17582.

The product of its digits is 3024, while the sum is 31.

The square root of 9713281 is about 3116.6137072149. The cubic root of 9713281 is about 213.3644125185.

The spelling of 9713281 in words is "nine million, seven hundred thirteen thousand, two hundred eighty-one".