9715213 has 4 divisors (see below), whose sum is σ = 10226560. Its totient is φ = 9203868.

The previous prime is 9715187. The next prime is 9715219. The reversal of 9715213 is 3125179.

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 a de Polignac number, because none of the positive numbers 2^k-9715213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9715219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255645 + ... + 255682.

It is an arithmetic number, because the mean of its divisors is an integer number (2556640).

Almost surely, 2^9715213 is an apocalyptic number.

It is an amenable number.

9715213 is a deficient number, since it is larger than the sum of its proper divisors (511347).

9715213 is a wasteful number, since it uses less digits than its factorization.

9715213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511346.

The product of its digits is 1890, while the sum is 28.

The square root of 9715213 is about 3116.9236435948. The cubic root of 9715213 is about 213.3785578492.

The spelling of 9715213 in words is "nine million, seven hundred fifteen thousand, two hundred thirteen".